Schedule

We present the current development and applications of sequentially timed all-optical mapping photography (STAMP), and show multi-timescale imaging, named nesting high-speed videography, based on the combination of ultrafast optical imaging and high-speed camera.

Authors:Keiichi Nakagawa/University of Tokyo Takakazu Suzuki/Keio University Takao Saiki/University of Tokyo Fumihiko Kannari/Keio University

FRAME is a laser-based multiplexed imaging technique that can provide femtosecond videography. This talk will describe the working principles of FRAME and its advantages for spectroscopic investigations of non-repetitive ultrafast transient events.

Authors:Elias Kristensson/Lunds Universitet

We review the operating principle of compressed ultrafast photography (CUP)—the world’s fastest single-shot receive-only 2D imaging modality. We will also discuss representative recent advances of CUP in hardware improvement, software development, and application exploration.

Authors:Jinyang Liang/Institut National de la Recherche Scientifique

A computational CMOS image sensor with programmable temporal shutters is developed. The macro-pixel structure enables to utilize ordinary single-aperture lenses. The pixel is based on the lateral electric-field charge modulator (LEFM) with a sub-nanosecond response.

Authors:Keiichiro Kagawa/Shizuoka University

Tight stabilization of infrared sources is proving to be a key technology for opening this broad window to unprecedented measurements in molecular samples in a wide range of thermodynamic conditions.
Since 2007 Paolo De Natale is the director of the Italian National Institute of Optics (CNR-INO). PDN main achievements include the development and phase control of metrological-grade infrared single- and multi-frequency (comb) source as well as a novel high-sensitivity spectroscopy technique (SCaR). PDN is Fellow of IEEE and OSA

Authors:Francesco Cappelli/Istituto Nazionale di Ottica-CNR Luigi Consolino/Istituto Nazionale di Ottica-CNR Simone Borri/Istituto Nazionale di Ottica-CNR Saverio Bartalini/Istituto Nazionale di Ottica-CNR Pablo Cancio/Istituto Nazionale di Ottica-CNR Iacopo Galli/Istituto Nazionale di Ottica-CNR Davide Mazzotti/Istituto Nazionale di Ottica-CNR Paolo De Natale/Istituto Nazionale di Ottica-CNR

We measured gapless, high-resolution absorption spectra spanning 55 cm^-1 by simultaneous current-modulation of two quantum cascade laser frequency combs. Detector noise limited spectra were obtained in as little as 10 ms with a resolution of a few MHz.

Authors:Michele Gianella/Empa Akshay Nataraj/Empa Béla Tuzson/Empa Jérôme Faist/ETH Zurich Lukas Emmenegger/Empa

We demonstrate on-chip molecular fingerprinting by measuring the refractive index dispersion of gas in the mid-IR using a thermally tuned suspended silicon microring resonator. We show CO₂ sensing down to 1000 ppm at 4.23 µm wavelength.

Authors:Floria Ottonello-Briano/Kungliga Tekniska Hogskolan Carlos Errando-Herranz/Kungliga Tekniska Hogskolan Kristinn Gylfason/Kungliga Tekniska Hogskolan

We report an interferometric biosensor that theoretically and experimentally exceeds the sensitivity predicted by bulk effective medium theory. The devices are realized by engineering dispersion effects in high confinement factor multilayer porous silicon rib waveguides.

Authors:Tahmid Hassan Talukdar/Clemson University Ivan Kravchenko/Oak Ridge National Laboratory Judson Ryckman/Clemson University

We experimentally demonstrate a nanophotonic biomolecular sensor which can passively concentrate and trap biomolecules in a drying analyte solution to regions of device structures where the field is highly enhanced, leading to improved sensing performance.

Authors:Xianglong Miao/University at Buffalo Lingyue Yan/University at Buffalo Yun Wu/University at Buffalo Peter Liu/University at Buffalo

We show deployment of a tunable telecom entangled photon source based on semiconductor quantum dots in an installed fiber network. We further report about network integration of a pulsed device operating at GHz clock rates.

Authors:Jan Huwer/Toshiba Research Europe Ltd Ziheng Xiang/Toshiba Research Europe Ltd Ginny Shooter/Toshiba Research Europe Ltd Joanna Skiba-Szymanska/Toshiba Research Europe Ltd Tina Müller/Toshiba Research Europe Ltd David Ellis/Toshiba Research Europe Ltd Matthew Anderson/Toshiba Research Europe Ltd Jonathan Müller/Toshiba Research Europe Ltd Thomas Mitchell/University of Cambridge Jonathan Griffiths/University of Cambridge Mark Stevenson/Toshiba Research Europe Ltd Andrey Krysa/University of Sheffield Jon Heffernan/University of Sheffield Ian Farrer/University of Sheffield David Ritchie/University of Cambridge Andrew Shields/Toshiba Research Europe Ltd

By using wavelength-selective switches to flexibly allocate source bandwidth across multiple users for entanglement distribution over a fiber-optic network, we accommodate both channels with disparate losses and requests for differentiated service.

Authors:Navin Lingaraju/Purdue University Hsuan-Hao Lu/Purdue University Suparna Seshadri/Purdue University Daniel Leaird/Purdue University Andrew Weiner/Purdue University Joseph Lukens/Oak Ridge National Laboratory

Entanglement suffers from noise in quantum channels. Noise originating from bit-flip and phase-flip errors has intrinsically different classical correlations. We find that these can be effectively explored when recovering entanglement by procrustean filtering.

Authors:Daniel Jones/U.S. Army Research Laboratory Gabriele Riccardi/University of L'Aquila Brian Kirby/U.S. Army Research Laboratory Cristian Antonelli/University of L'Aquila Michael Brodsky/U.S. Army Research Laboratory

Harnessing the interplay between polarization and temporal degrees of freedom, the quantum polarization state of a single photon can be transferred with high fidelity through a polarization-drifting channel whose stochastic parameters are concurrently estimated.

Authors:Salem Hegazy/Cairo University Salah Obayya/Zewail Univ of Science and Technology Bahaa Saleh/University Of Central Florida

Einstein-Podolsky-Rosen (EPR) steering is a useful resource for secure quantum communication. We experimentally demonstrate the distillation of Gaussian Einstein-Podolsky-Rosen steering by noiseless linear amplification. The results show that the Gaussian EPR steering is increased.

Authors:Yang Liu/Shanxi University Kaimin Zheng/Nanjing University Haijun Kang/Shanxi University Dongmei Han/Shanxi University Lijian Zhang/Nanjing University Xiaolong Su/Shanxi University Kunchi Peng/Shanxi University

The communication cost for classically simulating Einstein-Podolsky-Rosen (EPR) steering correlations quantifies their strength. We report a loophole-free demonstration of EPR steering correlations requiring more than one faster-than-light bit to simulate.

Authors:Michael Mazurek/NIST Boulder Yu Xiang/Peking University Martin Stevens/NIST Boulder Joshua Bienfang/NIST Boulder Michael Wayne/NIST Boulder Carlos Abellán/Barcelona Institute of Science and Technology Waldimar Amaya/Barcelona Institute of Science and Technology Morgan Mitchell/Barcelona Institute of Science and Technology Richard Mirin/NIST Boulder Sae Woo Nam/NIST Boulder Qiongyi He/Peking University Lynden Shalm/NIST Boulder Howard Wiseman/Griffith University

We develop fast and programmable phase switching of local oscillators of homodyne measurements suitable for time-domain multiplexed one-way quantum computation. Using this technique, we demonstrate quantum teleportation of EPR states multiplexed in time.

Authors:Baramee Charoensomutamon/the University of Tokyo Warit Asavanant/the University of Tokyo Tomohiro Nakamura/the University of Tokyo Takeru Ebihara/the University of Tokyo Shota Yokoyama/University of New South Wales Rafael Alexander/University of New Mexico Nicolas Menicucci/RMIT University Mamoru Endo/the University of Tokyo Jun-ichi Yoshikawa/the University of Tokyo Hidehiro Yonezawa/University of New South Wales Akira Furusawa/the University of Tokyo

We show that a photon number state incident on a beam splitter will create a phase-entangled state that violates Bell’s inequality. This approach may have practical applications in quantum communications and quantum key distribution.

Authors:James Franson/University of Maryland Baltimore County Saurabh Shringarpure/University of Maryland Baltimore County

Large forces and torques are generated when light is scattered from metamaterial surfaces. Here we explore how refractive-index patterning may be used to optimise such forces and torques, for applications in optically driven micro-machines.

Authors:Simon Hanna/University of Bristol

In this work, we identify the role of higher order antenna’s modes on a metasurface’s Pancharatnam – Berry phase by investigating second harmonic light scattering from two metasurfaces exhibiting dipolar and quadrupolar radiation.

Authors:Sylvain Gennaro/Sandia National Laboratories Yi Li/Southern University of Science and Technology Stefan Maier/Ludwig-Maximilians Universitat Rupert Oulton/Imperial College London

Leveraging the resonantly enhanced parametric excitation of amorphous silicon metasurface, we achieved second harmonic generation (SHG) with ultra-high ON/OFF ratio of 15000. It provides a compact and electrically tunable approach to boosting and dynamically controlling SHG.

Authors:Xuexue Guo/Pennsylvania State University Yimin Ding/Pennsylvania State University Xingjie Ni/Pennsylvania State University

We demonstrate lasing action in the visible from an all-dielectric metasurface. A low laser threshold is achieved with a high-Q resonance due to operation at the near bound states in the continuum (BIC) regime.

Authors:Shaimaa Azzam/Purdue University Krishnakali Chaudhuri/Purdue University Alexei Lagoutchev/Purdue University Young L. Kim/Purdue University Vladimir Shalaev/Purdue University Alexandra Boltasseva/Purdue University Alexander Kildishev/Purdue University

We demonstrate nonlinear silicon metasurfaces empowered by collective localized modes governed by bound states in the continuum operating in mid-infrared spectral range. When being resonantly excited, the metasurfaces generate 3^rd, 5^th and 7^th optical harmonics.

Authors:George Zograf/Australian National University Anastasia Zalogina/Australian National University Kirill Koshelev/Australian National University Duk-Yong Choi/Australian National University Viacheslav Korolev/Friedrich-Schiller University Jena Richard Hollinger/Friedrich-Schiller University Jena Daniil Kartashov/Friedrich-Schiller University Jena Michael Zürch/Friedrich-Schiller University Jena Christian Spielmann/Friedrich-Schiller University Jena Sergey Makarov/ITMO University Barry Luther-Davies/Australian National University Sergey Kruk/Australian National University Yuri Kivshar/Australian National University

We demonstrate monolithic lithium niobate metasurfaces for enhanced second-harmonic generation in the visible spectrum. Our approach offers a conversion efficiency above 5×10^-5 with applications in novel nonlinear and quantum light sources.

Authors:Luca Carletti/Università degli Studi di Padova Attilio Zilli/Politecnico di Milano Fabio Moia/Istituto Italiano di Tecnologia Andrea Toma/Istituto Italiano di Tecnologia Marco Finazzi/Politecnico di Milano Michele Celebrano/Politecnico di Milano Costantino De Angelis/Politecnico di Milano Dragomir Neshev/The Australian National University

We demonstrate heterogeneous integration of thin film LiNbO₃ on Si₃N₄ photonic integrated circuits with SiO₂, Al₂O₃ and direct bonding. We report record low losses in bonded ring resonators of 0.4 dB/cm (intrinsic Q = 8.19x10⁵).

Authors:Siddhartha Ghosh/MIT Lincoln Laboratory Siva Yegnanarayanan/MIT Lincoln Laboratory Matthew Ricci/MIT Lincoln Laboratory Dave Kharas/MIT Lincoln Laboratory Paul Juodawlkis/MIT Lincoln Laboratory

We demonstrate an electro-optic polarisation converter for 1550nm at cryogenic temperatures in titanium in-diffused lithium niobate waveguides. The switching voltage increases, the modulation depth remains unchanged, and we show operation up to 25MHz.

Authors:Frederik Thiele/Paderborn University Jan Philipp Hoepker/Paderborn University Moritz Bartnick/Paderborn University Felix vom Bruch/Paderborn University Harald Herrmann/Paderborn University Raimund Ricken/Paderborn University Victor Quiring/Paderborn University Christof Eigner/Paderborn University Christine Silberhorn/Paderborn University Tim Bartley/Paderborn University

We demonstrate the integration of a Si3N4 Damascene photonic platform with thin-film lithium niobate on insulator (LNOI), via direct wafer bonding. This process enables fabrication of hybrid χ(2)-χ(3) microresonators with Q∼10^6, as well as integrated travelling wave EO modulators.

Authors:Mikhail Churaev/EPFL Simon Hönl/IBM Research - Zurich Rui Ning Wang/EPFL Charles Möhl/IBM Research - Zurich Tianyi Liu/EPFL Connor Skehan/EPFL Johann Riemensberger/EPFL Daniele Caimi/IBM Research - Zurich Junqiu Liu/EPFL Paul Seidler/IBM Research - Zurich Tobias Kippenberg/EPFL

We first demonstrate a hybrid silicon and lithium niobate Mach-Zehnder modulator operating at C-band and O-band simultaneously. The device shows high Electro-optic modulation efficiency and bandwidth beyond 70 GHz with ultra-wide band operation.

Authors:Shihao Sun/Sun Yat-Sen University Mingbo He/Sun Yat-Sen University Siyuan Yu/Sun Yat-Sen University Xinlun Cai/Sun Yat-Sen University

We demonstrate a 3-GHz acousto-optic frequency shifter on a thin-film lithium niobate platform, featuring over 30 dB carrier suppression. The active frequency shifting loop generates a frequency comb with 200 lines over 5 nm optical bandwidth.

Authors:Linbo Shao/Harvard University Neil Sinclair/Harvard University James Leatham/Raytheon Space & Airborne Systems Yaowen Hu/Harvard University Mengjie Yu/Harvard University Terry Turpin/9918 Evergreen Ave Devon Crowe/Raytheon Space & Airborne Systems Marko Loncar/Harvard University

We demonstrated acousto-optic modulation of photonic bound state in the continuum on an etchless lithium niobate platform. We obtained coherent coupling between microwave and optical photons, exhibited by the observed electro-acousto-optically induced transparency and absorption.

Authors:Zejie Yu/The Chinese University of Hong Kong Xiankai Sun/The Chinese University of Hong Kong

We introduced a new scheme for integrating 2D materials with photonic integrated circuits by harnessing bound states in the continuum. We demonstrated efficient thermo-optic and electro-optic modulation on a hybrid graphene/LiNbO₃ platform with this approach.

Authors:Zejie Yu/The Chinese University of Hong Kong Yi Wang/The Chinese University of Hong Kong Beilei Sun/The Chinese University of Hong Kong Yeyu Tong/The Chinese University of Hong Kong Jian-Bin Xu/The Chinese University of Hong Kong Hon Ki Tsang/The Chinese University of Hong Kong Xiankai Sun/The Chinese University of Hong Kong

We demonstrate an ultra-broadband interleaver operating over 100 nm for interleaving frequency comb lines with a box-like spectral response. This demonstration paves the way for fully-integrated wavelength division multiplexed transceivers scalable to hundreds of wavelengths.

Authors:Anthony Rizzo/Columbia University Qixiang Cheng/Columbia University Stuart Daudlin/Columbia University Keren Bergman/Columbia University

We demonstrate a low-repetition-rate lithium niobate based electro-optic (EO) frequency comb operating with 3.481 GHz line spacing, by integrating a cavity-based EO comb source with traveling-wave phase-modulators on the same chip.

Authors:Amirhassan Shams-Ansari/Harvard University Christian Reimer/Harvard University Neil Sinclair/Harvard University Mian Zhang/Harvard University Nathalie Picqué/Max-Planck Institut für Quantenoptik Marko Loncar/Harvard University

We report the first demonstration of microresonator dark pulse generation by self-injection locking of a DFB laser to a Si3N4 microresonator with normal GVD. The 26 GHz repetition rate beatnote is characterized.

Authors:Junqiu Liu/Ecole Polytechnique Federale de Lausanne Grigory Lihachev/Ecole Polytechnique Federale de Lausanne Lin Chang/University of California Santa Barbara Jijun He/Ecole Polytechnique Federale de Lausanne Rui Ning Wang/Ecole Polytechnique Federale de Lausanne Joel Guo/University of California Santa Barbara Arslan Raja/Ecole Polytechnique Federale de Lausanne Erwan Lucas/Ecole Polytechnique Federale de Lausanne Nikolay Pavlov/MicroR Systems Sarl John Jost/MicroR Systems Sarl David Kinghorn/University of California Santa Barbara John Bowers/University of California Santa Barbara Tobias Kippenberg/Ecole Polytechnique Federale de Lausanne

We demonstrate PAM-4 modulation on a modulation instability frequency comb, generated by tuning through the cavity resonance of a Kerr microresonator. We determine the BER for the corresponding eye diagram.

Authors:Chinmay Shirpurkar/CREOL, The College of Optics & Photonics Ricardo Bustos Ramirez/CREOL, The College of Optics & Photonics Su Peng Yu/National Institute for Standards and Technology Travis Briles/National Institute for Standards and Technology Scott Papp/National Institute for Standards and Technology Peter Delfyett/CREOL, The College of Optics & Photonics

Optical frequency comb with 9 lines, 20 GHz spacing and 0.89 dB flatness is generated by cascading modulators on the lithium niobate-on-insulator platform. The device features an on-chip optical loss less than 1.19 dB.

Authors:Mengyue Xu/Sun Yat-Sen University Mingbo He/Sun Yat-Sen University Xinlun Cai/Sun Yat-Sen University

We report octave spanning frequency combs generated by self-injection locking a distributed feedback laser to a Kerr microresonator. This method benefits from mitigated thermal transients and eliminates an optical isolator which simplifies photonic integration.

Authors:Travis Briles/NIST-Boulder Lin Chang/University of California - Santa Barbara Chao Xiang/University of California - Santa Barbara Joel Guo/University of California - Santa Barbara David Kinghorn/University of California - Santa Barbara Jordan Stone/NIST-Boulder Su-Peng Yu/NIST-Boulder Gregory Moille/National Institute of Standards and Technology Kartik Srinivasan/National Institute of Standards and Technology John Bowers/University of California - Santa Barbara Scott Papp/NIST-Boulder

We demonstrate piezoelectric actuators monolithically integrated on ultralow-loss Si3N4 waveguides. Varying the voltage applied on the actuator allows tuning the microresonator, and is used to initiate, switch, stabilize and tightly phase lock the single soliton microcomb.

Authors:Junqiu Liu/Ecole Polytechnique Federale de Lausanne Hao Tian/Purdue University Erwan Lucas/Ecole Polytechnique Federale de Lausanne Arslan Raja/Ecole Polytechnique Federale de Lausanne Grigory Lihachev/Ecole Polytechnique Federale de Lausanne Rui Ning Wang/Ecole Polytechnique Federale de Lausanne Jijun He/Ecole Polytechnique Federale de Lausanne Tianyi Liu/Ecole Polytechnique Federale de Lausanne Miles Anderson/Ecole Polytechnique Federale de Lausanne Wenle Weng/Ecole Polytechnique Federale de Lausanne Sunil Bhave/Purdue University Tobias Kippenberg/Ecole Polytechnique Federale de Lausanne

A localized nanoplane modification was created in silica glass with a few femtosecond laser pulses. Fast writing of anisotropic structures and high-density data storage can be achieved.

Authors:Yuhao Lei/University of Southampton Masaaki Sakakura/University of Southampton Lei Wang/University of Southampton Yanhao Yu/University of Southampton Huijun Wang/University of Southampton Peter Kazansky/University of Southampton

Aberrated femtosecond laser pulses were applied to telecommunication fiber to open nano-filament arrays through the silica cladding and waveguide cross-section. Strong photonic bandgap response from p-shifted, second-order Bragg gratings enabled high resolution refractive index sensing.

Authors:Peter Herman/University of Toronto Keivan Aghdami/University of Toronto Erden Ertorer/University of Toronto Jianzhao Li/University of Toronto Abdullah Rahnama/University of Toronto

Based on the Keldysh concept of laser-driven electron oscillations, we overview recent progress in development of non-perturbative approaches to simulation of the photoionization of non-metal crystals by few-cycle ultrashort laser pulses with non-zero spectral bandwidth.

Authors:Vitaly Gruzdev/University of New Mexico Olga Sergaeva/ITMO University

Theoretical and experimental studies have demonstrated that bi-chromatic laser action on bandgap materials can result in highly enhanced efficiency of local energy coupling at properly chosen combinations of wavelengths and energies.

Authors:Nadezhda Bulgakova/HiLASE, Institute of Physics CAS Vladimir Zhukov/HiLASE, Institute of Physics CAS Juraj Sládek/HiLASE, Institute of Physics CAS Inam Mirza/HiLASE, Institute of Physics CAS Alexander Bulgakov/HiLASE, Institute of Physics CAS

Evolution of the physicochemical properties of glass substrate upon laser treatment of its thin film coating is analyzed numerically. Raman spectroscopy is applied for experimental validation of the model.

Authors:Driffa Guerfa/Saint Gobain Recherche Iryna Gozhyk/Saint Gobain Recherche Ekaterina Burov/Saint Gobain Recherche Matthieu Lancry/Institut de Chimie Moléculaire d'Orsay Bertrand Poumellec/Institut de Chimie Moléculaire d'Orsay

Liquid hexane was irradiated by focused femtosecond laser pulses. The GC-MS analysis of the samples suggested that the major process was the dehydrogenation condensation of hexane producing dodecane and its structural isomers.

Authors:Shunichi Sato/Tohoku University Wakako Ishikawa/Tohoku University

We report optical nanomanipulation and assembly of colloidal particles on a solid substrate by modulating particle-substrate interactions through laser-induced optothermal dynamics.

Authors:Jingang Li/The university of Texas at Austin Yuebing Zheng/The university of Texas at Austin

Acousto-optic devices promise high modulation efficiency on account of their ability to simultaneously exploit acoustic and optical resonances. Their adoption and complexity has been limited by the lack of foundry compatibility and low operation frequency. In this work, we show a MEMS foundry platform can be used to build efficient, high frequency (~ 4 GHz) AOMs.

Authors:Krishna Coimbatore Balram/University of Bristol

We show here an InGaP optomechanical crystal oscillating at 21 MHz stabilized
by injecting a delayed copy of itself thanks to electrodes. An improvement of 20
dBc/Hz is achieved at 1 kHz offset.

Authors:Inès Ghorbel/Thales Research & Technology Maëlle Bénéfice/Thales Research & Technology Rui Zhu/Centre de Nanosciences et de Nanotechnologies Aude Martin/Thales Research & Technology Loïc Morvan/Thales Research & Technology Daniel Dolfi/Thales Research & Technology Sylvain Combrié/Thales Research & Technology Rémy Braive/Centre de Nanosciences et de Nanotechnologies Alfredo De Rossi/Thales Research & Technology

A thin layer of alumina is characterized using a surface acoustic wave photonic circuit in standard silicon on insulator. Small changes in acoustic velocity are identified by an integrated microwave photonic filter, through acoustic delays.

Authors:Mirit Hen/Bar-Ilan University Dvir Munk/Bar-Ilan University Moshe Katzman/Bar-Ilan University Maayan Priel/Bar-Ilan University Sarah Taragin/Bar-Ilan University Avi Zadok/Bar-Ilan University

An optomechanical system that couples external torque to the harmonic vibrations of a photonic crystal nanobeam is presented. Measurements reveal torque sensitivity of τ_min ∼ 10^–22 – 10^–19 Nm/√Hz for mechanical frequencies spanning MHz-GHz.

Authors:Bishnupada Behera/University of Calgary Hamidreza Kaviani/University of Calgary Ghazal Hajisalem/University of Calgary Gustavo Luiz/University of Alberta Paul Barclay/University of Calgary

We fabricated and measured a GaAs bullseye resonator able to operate above 3 GHz when coupled to whispering gallery optical modes. Our large phononic bandgap allowed us to observe the symmetry break caused by the material anisotropy and obtain optomechanical coupling rates above 30 kHz.

Authors:Natalia do Carmo Carvalho/University of Campinas Rodrigo Benevides/University of Campinas Michaël Ménard/Université du Québec à Montréal Gustavo S. Wiederhecker/University of Campinas Newton C. Frateschi/University of Campinas Thiago Mayer Alegre/University of Campinas

We derive and validate a model for the photothermal forces that act on optomechanical cavities. Our results not only enable the prediction of such effect but also show that it is much stronger than previously estimated.

Authors:André Primo/University of Campinas Rodrigo Benevides/University of Campinas Cauê Moreno Kersul de Castro Carvalho/University of Campinas Pierre Assis/University of Campinas Gustavo S. Wiederhecker/University of Campinas Thiago Alegre/University of Campinas

We present a device composed of a pair of suspended evanescently-coupled waveguides built to investigate non-eigenmode optical forces. A disk microcavity is used for near-field optomechanical transduction of the motion driven by a modulated pump.

Authors:Cauê Moreno Kersul de Castro Carvalho/“Gleb Wataghin” Institute of Physics Rodrigo Benevides/“Gleb Wataghin” Institute of Physics Pierre Assis/“Gleb Wataghin” Institute of Physics

We present a fiber laser, generating solitons arising from balancing the Kerr nonlinearity and high, even-order dispersion, (i.e., fourth order, etc.). These pulses follow new energy-width scaling, which unlocks opportunities for novel mode-locked lasers.

Authors:Antoine Runge/University of Sydney Darren Hudson/Miriad technologies Kevin Tam/University of Sydney C. de Sterke/University of Sydney Andrea Blanco-Redondo/Nokia Bell labs

We demonstrate nonlinear self-trapping and guiding of light through suspensions of red-blood-cells from sheep. By master/slave-type coupling, biological waveguides formed at one wavelength can effectively guide a wide spectrum of light at low power.

Authors:Nicolas Perez/California state University Northridgee Jacob Chambers/California state University Northridgee Zhigang Chen/san francisco state san francisco Anna Bezryadina/California state University Northridgee

We experimentally demonstrate that solitons generated through the newly discovered phenomenon, soliton self-mode conversion, are purely noise-initiated although they yield record high energy fs pulses that are strictly transform limited.

Authors:Havva Begüm Kabagöz/Boston University Aku Antikainen/Boston University Siddharth Ramachandran/Boston University

We introduce edgeless photonic-crystal resonators, creating photonic bandgap atop one azimuthal mode. The bandgap affects re-balancing of resonator Kerr-shift to enable spontaneous soliton generation, which we demonstrate by tuning laser onto resonance with the mode.

Authors:Su-Peng Yu/National Inst of Standards & Technology Daniel Cole/National Inst of Standards & Technology Hojoong Jung/National Inst of Standards & Technology Gregory Moille/National Institute of Standards and Technology Kartik Srinivasan/National Institute of Standards and Technology Scott Papp/National Inst of Standards & Technology

We study nonlinear dynamics emerging in a photonic microring dimer. It is shown that four wave mixing pathways between the dimer supermodes lead to novel nonlinear phenomena going beyond the single resonator physics.

Authors:Alexey Tikan/Ecole Polytechnique Federale de Lausanne Johann Riemensberger/Ecole Polytechnique Federale de Lausanne Kenichi Komagata/Ecole Polytechnique Federale de Lausanne Simon Hönl/IBM Mikhail Churaev/Ecole Polytechnique Federale de Lausanne Connor Skehan/Ecole Polytechnique Federale de Lausanne Haiurn Guo/Ecole Polytechnique Federale de Lausanne Rui Ning Wang/Ecole Polytechnique Federale de Lausanne Junqiu Liu/Ecole Polytechnique Federale de Lausanne Paul Seidler/IBM Tobias Kippenberg/Ecole Polytechnique Federale de Lausanne

We use machine learning techniques to predict the peak intensity and temporal shift of extreme red-shifted rogue solitons in supercontinuum generation from simulated single-shot spectral intensity profiles without any phase information.

Authors:lauri SALMELA/Tampere University Coraline Lapre/Université Bourgogne Franche-Comté John Dudley/Université Bourgogne Franche-Comté Goëry Genty/Tampere University

We demonstrate soliton self-compression of high-energy 1800 nm laser pulses in hollow capillary fibres. This enables generation of infrared attosecond pulses and few-femtosecond pulses from the deep ultraviolet to the infrared with resonant dispersive wave emission.

Authors:Christian Brahms/Heriot-Watt University Federico Belli/Heriot-Watt University John Travers/Heriot-Watt University

We overcome the trade-off between loss and dispersion in high Q microresonators by engineering their cross-section along the length. We show high quality factor of 8.0 million, corresponding to a propagation loss of 4.7 dB/m.

Authors:Mateus Corato Zanarella/Columbia University Xingchen Ji/Columbia University Aseema Mohanty/Columbia University Utsav Dave/Columbia University Alexander Gaeta/Columbia University Michal Lipson/Columbia University

We report tightly confining Si₃N₄ waveguides with record low loss at key strontium clock visible wavelengths, 0.03dB/cm at λ=698nm, 0.08dB/cm at 450nm and ring resonators with measured loaded Q of 8.6 million at λ=674nm.

Authors:Nitesh Chauhan/University of California, Santa Barbara Jiawei Wang/University of California, Santa Barbara Debapam Bose/University of California, Santa Barbara Renan Moreira/University of California, Santa Barbara Daniel Blumenthal/University of California, Santa Barbara

D-shape Si₃N₄ waveguides are fabricated by dielectric lift-off process. We measure ultra-low loss for a 90nm-thick core of 2.42 dB/m at 1550 nm and a loaded Q-factor of 1.12×10⁶ for a 0.8 mm radius resonator.

Authors:Qiancheng Zhao/University of California Santa Barbara Jiawei Wang/University of California Santa Barbara Nitesh Chauhan/University of California Santa Barbara Debapam Bose/University of California Santa Barbara Naijun Jin/Yale University Renan Moreira/University of California Santa Barbara Ryan Behunin/Northern Arizona University Peter Rakich/Yale University Daniel Blumenthal/University of California Santa Barbara

We demonstrate miniature silicon nitride (SiN) pure-phase modulators operating at the blue wavelength. The devices are based on adiabatic micro-rings that are robust against fabrication variations and hold great promise for large-scale visible integrated systems.

Authors:Heqing Huang/Columbia University Guozhen Liang/Columbia University Aseema Mohanty/Columbia University Xingchen Ji/Columbia University Min Shin/Columbia University Michal Lipson/Columbia University Nanfang Yu/Columbia University

We experimentally demonstrate a SiN angled-MMI based polarization splitter with nearly wavelength-independent performance over C+L bands, insertion loss ≈0.8 dB (1.0 dB), and crosstalk < −18 dB (< −20 dB) for TE (TM) polarization.

Authors:Ramesh k/Institute for Research in Electronics & Applied Physics, University of Maryland Thomas Murphy/Institute for Research in Electronics & Applied Physics, University of Maryland Karen Grutter/Laboratory for Physical Sciences

We demonstrate efficient second harmonic generation in a silicon nitride microring, through perfect phase matching of a photogalvanic DC-field-induced SHG process. The efficiency of 2,500 %/W is > 100 times larger than the previous record in silicon photonics.

Authors:Xiyuan Lu/National Inst of Standards & Technology Gregory Moille/National Inst of Standards & Technology Ashutosh Rao/National Inst of Standards & Technology Daron Westly/National Inst of Standards & Technology Qing Li/National Inst of Standards & Technology Kartik Srinivasan/National Inst of Standards & Technology

We show how broadband (>30nm) quasi-phase matching in all-optically poled Si₃N₄ waveguides provides a platform for efficient sum-frequency generation, and for femtosecond pulse processing such as f_CEO detection without the need for group velocity engineering.

Authors:Edgars Nitiss/Ecole Polytechnique Federale de Lausanne Boris Zabelich/Ecole Polytechnique Federale de Lausanne Camille-Sophie Brès/Ecole Polytechnique Federale de Lausanne

Colloidal quantum dots (QDs) have become an attractive light source for visible photonics. Here, we demonstrate the first integrated LED based on CdSe/CdS QDs, with the emission directly coupled to a silicon nitride waveguide.

Authors:Lukas Elsinger/Ghent University - imec Ivo Tanghe/Ghent University - imec Frederik Van Acker/Ghent University Natalia K. Zawacka/Ghent University Robin Petit/Ghent University Kristiaan Neyts/Ghent University Christophe Detavernier/Ghent University Pieter Geiregat/Ghent University Zeger Hens/Ghent University Dries Van Thourhout/Ghent University - imec

We transmit two QPSK signals over a polarization maintaining highly-elliptical-core multimode fiber without recourse to MIMO processing. OSNR penalty is between 2.3 and 3.5 dB at 24 Gbaud.

Authors:Alessandro Corsi/Laval University Jun Chang/Laval University Stanley Johnson/Laval University Sasan Zhalehpour/Laval University Leslie Rusch/Laval University Sophie LaRochelle/Laval University

We propose to use multiple lasers to write long-period gratings into few-mode fibers for significant reduction of the mean DMD by 280 times from 1700 to 6.2 ns at 1500 km.

Authors:Xutao Wang/Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China Zhiqun Yang/Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China Wenbo Yu/Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China Yaping Liu/Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China Zixiang Di/Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China Guifang Li/CREOL, The College of Optics and Photonics, University of Central Florida, FL 32816, Lin Zhang/Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China

A novel mode-group demultiplexer using Fabry-Perot (FP) filters has been proposed and designed to enable low-crosstalk demultiplexing of mode groups with degeneracies commensurate with those of graded-index (GRIN) MMFs.

Authors:Fatemeh Ghaedi Vanani/University of Central Florida Alireza Fardoost/University of Central Florida Guifang Li/University of Central Florida

Based on a ring-core fiber (RCF) with low high-order inter-mode-group crosstalk, OAM mode-group multiplexed transmission using polynomial nonlinear equalizer over 1-km RCF is successfully demonstrated, achieving an effective electrical spectrum efficiency of ~7.2 bit/s/Hz.

Authors:Junwei Zhang/Sun Yat-Sen University Junyi Liu/Sun Yat-Sen University Zhenrui Lin/Sun Yat-Sen University Jie Liu/Sun Yat-Sen University Lei Sheng/Yangtze Optical Fiber and Cable Joint Stock Limited Company Siyuan Yu/Sun Yat-Sen University

We show recent technologies for low power consumption multi-core amplifiers. We report advances concerning core pumping, cladding pumping and optimized hybrid pumping technologies for power efficient optical amplification with erbium doped multi-core fiber amplifiers.

Authors:Emmanuel Le Taillandier de Gabory/NEC Corporation Hitoshi Takeshita/NEC Corporation Keiichi Matsumoto/NEC Corporation

Using two high-order OAM modes each carrying a quadrature phase-shift keying signal, we experimentally demonstrate a record 300-km OAM mode-division multiplexing transmission assisted by a ring-core fiber recirculating loop without multiple-input multiple-output digital signal processing.

Authors:Hongya Wang/Huazhong University of Science and Techn Min yang/Huazhong University of Science and Techn Lulu Wang/Huazhong University of Science and Techn Lei Sheng/Yangtze Optical Fibre and Cable Joint Stock Limited Company Lei zhang/Yangtze Optical Fibre and Cable Joint Stock Limited Company Jie Luo/Yangtze Optical Fibre and Cable Joint Stock Limited Company Jian Wang/Huazhong University of Science and Techn

We experimentally demonstrate 160 Gbit/s on-chip mode-multiplexed transmission over a multimode silicon-on-insulator (SOI) waveguide using four spatial and polarization modes. 4×4 MIMO-based DSP is used to compensate mode coupling.

Authors:Yetian Huang/Shanghai University Hanzi Huang/Shanghai University Ruihuan Zhang/Shanghai Jiao Tong University Yingxiong Song/Shanghai University Haoshuo Chen/Nokia bell labs Nicolas Fontaine/Nokia bell labs Roland Ryf/Nokia bell labs Qingming Zhu/Shanghai Jiao Tong University Yu He/Shanghai Jiao Tong University Yong Zhang/Shanghai Jiao Tong University Yikai Su/Shanghai Jiao Tong University Min Wang/Shanghai University

We observed a stochastic photonic spin Hall effect from a spatially-bounded lattice of ferromagnetic meta-atoms of nanoscale size fluctuations. These results open the way towards sensing deep-subwavelength disorders by actively breaking the photonic spin symmetry.

Authors:Bo Wang/Technion-Israel Institute of Technology Kexiu Rong/Technion-Israel Institute of Technology Elhanan Maguid/Technion-Israel Institute of Technology Vladimir Kleiner/Technion-Israel Institute of Technology Erez Hasman/Technion-Israel Institute of Technology

We present the experimental realization of a charge-2 Weyl point in a low index-contrast (n=1.52) photonic crystal fabricated using two-photon polymerization and characterized at mid-infrared wavelengths.

Authors:Sachin Vaidya/The Pennsylvania State University Jiho Noh/The Pennsylvania State University Alexander Cerjan/The Pennsylvania State University Mikael Rechtsman/The Pennsylvania State University

Metamaterial design is often based on symmetries and their breaking. In this tutorial, we introduce an alternative paradigm based on the notion of dualities and illustrate it using general theoretical principles and hands-on demonstrations.
Vitelli is a Professor of Physics at the University of Chicago. He obtained his Phd at Harvard in 2006 and was a post-doc at the University of Pennsylvania until he moved to Leiden University where he was a faculty till 2017. He is a fellow of the American Physical Society.

Authors:Vincenzo Vitelli/University of Chicago

We show that chalcogenide topological insulators have exceptionally high infrared refractive indices, enabling metamaterials with complex mode structures that could open up pathways to combine dielectric, plasmonic and magnetic metamaterials in a single platform.

Authors:Harish Krishnamoorthy/Nanyang Technological University Giorgio Adamo/Nanyang Technological University Jun Yin/Nanyang Technological University Vassili Savinov/University of Southampton Nikolay Zheludev/Nanyang Technological University Cesare Soci/Nanyang Technological University

By strategically interfacing non-Hermitian and topological physics, we demonstrate arbitrary, robust light steering in reconfigurable non-Hermitian junctions, in which chiral topological states can propagate at an interface of the gain and loss domains.

Authors:Han Zhao/University of Pennsylvania Xingdu Qiao/University of Pennsylvania Tianwei Wu/University of Pennsylvania Bikashkali Midya/University of Pennsylvania Stefano Longhi/Politecnico di Milano Liang Feng/University of Pennsylvania

We experimentally demonstrate a femtosecond coherent vibrational spectroscopy based on infrared four wave mixing. The technique can be applied to obtain a chemical image of biological tissue combined with microscopy.

Authors:jizhou Wang/Texas AM University Kai Wang/Texas AM University yujie Shen/Texas AM University Zehua Han/Texas AM University Alexei Sokolov/Texas AM University Marlan Scully/Texas AM University

We present a novel real-time frequency-encoded spatiotemporal (FEST) focusing technology using a programmable two-dimensional optical frequency comb. This technique enables, for the first time, simultaneous spatial and temporal focusing at microseconds through thick scattering media.

Authors:Xiaoming Wei/California Institute of Technology Yuecheng Shen/California Institute of Technology Joe Jing/California Institute of Technology A. S. Hemphill/California Institute of Technology Changsheng Yang/South China University of Technology Shanhui Xu/South China University of Technology Zhongmin Yang/South China University of Technology Lihong Wang/California Institute of Technology

Microscopes suffer from limited space-bandwidth product at high frame rates due to data collection bottlenecks. We demonstrate a coded aperture compressive microscope that enhances the space-bandwidth product of high-speed imagers.

Authors:Jaewook Shin/Johns Hopkins University Velat Kilic/Johns Hopkins University Mark Foster/Johns Hopkins University

We report a 16 μm-pitched micro-LED array that enables single-cell optogenetics with in vitro calcium imaging. Our LEDs can output bright, localized light to optogenetically address cells that are sub-10 μm apart with low crosstalk.

Authors:Dacheng Mao/UMass Amherst Zheshun Xiong/UMass Amherst Ningwei Li/UMass Amherst Yubing Sun/UMass Amherst Guangyu Xu/UMass Amherst

We present a deep learning-based framework to perform image super-resolution in scanning electron microscopy. The technique was demonstrated to perform a resolution enhancement using a standard resolution test target and hydrogel samples.

Authors:Kevin de Haan/University of California Los Angeles Zachary Ballard/University of California Los Angeles Yair Rivenson/University of California Los Angeles Yichen Wu/University of California Los Angeles Aydogan Ozcan/University of California Los Angeles

Dual-comb photoacoustic spectroscopy (DCPAS) is a new spectroscopy technique that measures photoacoustic signals in thousands of wavelength bands simultaneously. We report the first demonstration of this technique and show DCPAS spectra of polymer films.

Authors:Jacob Friedlein/National Institute of Standards and Technology Esther Baumann/National Institute of Standards and Technology Kimberly Briggman/National Institute of Standards and Technology Gabriel Colacion/National Institute of Standards and Technology Fabrizio Giorgetta/National Institute of Standards and Technology Daniel Herman/National Institute of Standards and Technology Eli Hoenig/National Institute of Standards and Technology Jeeseong Hwang/National Institute of Standards and Technology Nathan Newbury/National Institute of Standards and Technology Edgar Perez/National Institute of Standards and Technology Christopher Yung/National Institute of Standards and Technology Ian Coddington/National Institute of Standards and Technology Kevin Cossel/National Institute of Standards and Technology

Integrating innovations in instrumentation and image analysis, multi-parametric PAM enables comprehensive and quantitative characterization of the microvascular structure, mechanical properties, hemodynamics, and tissue oxygen metabolism, all at the microscopic level. This enabling technology has opened up unprecedented opportunities in brain, cardiovascular and cancer research.

Authors:Song Hu/Washington University in St. Louis

We generate high peak-power, Gaussian-shaped 486-nm pulses using a PPKTP crystal that performs simultaneous frequency doubling and nonlinear mode conversion, and FWM in the LP₀₇ mode of a fiber.

Authors:Robert Lindberg/Kungliga Tekniska Högskolan XIao Liu/Boston University Andrius Zukauskas/Kungliga Tekniska Högskolan Siddharth Ramachandran/Boston University Valdas Pasiskevicius/Kungliga Tekniska Högskolan

We demonstrate an energetic ultrafast laser source that simultaneously provides three-color pulses tunable from 925 nm to 1150 nm with energy up to 75 nJ. The repetition-rate can be tuned from 1 to 20 MHz.

Authors:Yang Yu/Xidian University Shaobo Fang/Institute of physics, Chinese Academy of Science Hao Teng/Institute of physics, Chinese Academy of Science Jiangfeng Zhu/Xidian University Junli Wang/Xidian University Guoqing Chang/Institute of physics, Chinese Academy of Science zhiyi wei/Institute of physics, Chinese Academy of Science

A W-type normal dispersion thulium-doped fiber with distributed filtering effect at long wavelengths is exploited for short-wavelength pulse amplification. We achieved a pulse laser with high energy of~ 32.7-nJ at 1755-nm and no pulse break-up. .

Authors:Shaoxiang Chen/Nanyang Technological University Yuhao CHEN/Nanyang Technological University Sidharthan Raghuraman/Nanyang Technological University Kun Liu/Nanyang Technological University chenjia Cheng/Nanyang Technological University Qijie Wang/Nanyang Technological University Dingyuan Tang/Nanyang Technological University Seongwoo Yoo/Nanyang Technological University

L-band wavelength-tunable Er³⁺-doped tellurite fiber lasers in a linear cavity based on Littrow configuration were developed. Wavelength tunable range of 38 nm from 1589 to 1627 nm was achieved with in-band pump at 1570 nm.

Authors:Shijie Fu/The University of Arizona Xiushan Zhu/The University of Arizona Junfeng Wang/The University of Arizona Jingwei Wu/The University of Arizona Minghong Tong/The University of Arizona Jie Zong/NP Photonics Michael Li/NP Photonics Kort Wiersma/NP Photonics Arturo Chavez/NP Photonics Nasser Peyghambarian/The University of Arizona

We present a high-power, all-fiber optical parametric chirped-pulse amplifier working at 1700 nm. The laser delivers 1.42 W average power and ~40 nJ pulse energy. The pulses can be de-chirped to ~450 fs.

Authors:Yukun Qin/University of Arizona Orkhongua Batjargal/University of Arizona Benjamin Cromey/University of Arizona Khanh Kieu/University of Arizona

We demonstrate a synchronously-pumped Raman oscillator that generates a 48 nJ Stokes pulse at 1200 nm and a 43 nJ pulse at 1080 nm, extending the spectral range of conventional ytterbium-doped silica fiber-based ultrafast sources.

Authors:Michael Buttolph/Cornell University Pavel Sidorenko/Cornell University Menansili A Mejooli/Cornell University Chris Schaffer/Cornell University Frank W Wise/Cornell University

We present a Bi-doped fiber laser (BDFL) at 1340nm with >170mW output power and 35% slope efficiency. A wavelength-tunable version of the BDFL facilitated by an FBG is demonstrated from 1315-1340nm with >120mW output power.

Authors:Siyi Wang/University Southampton, ORC Yu Wang/University Southampton, ORC Naresh Thipparapu/University Southampton, ORC Morten Ibsen/University Southampton, ORC David Richardson/University Southampton, ORC Jayanta Sahu/University Southampton, ORC

A very widely tunable thulium-doped alumino-silicate fiber laser is reported. The laser was core-pumped by an erbium-doped fiber laser at 1580nm and was continuously tunable over a 371 nm tuning range, from 1654-2025 nm.

Authors:Mark Burns/University of Southampton Peter Shardlow/University of Southampton William Clarkson/University of Southampton

Reversible, 200 fs optical switching of carbon nanotubes is demonstrated by utilizing Coulombic many-body effects, strong exciton binding and quantum memory in Coulombic scattering which together eliminate pure dephasing of coherences.

Authors:Weiwei Jiang/University of Michigan Kankan Cong/Rice University Bryan Anthonio/Rice University Tim Noe/Rice University Huaping Liu/Chinese Academy of Sciences hiromichi kataura/National Institute of Advanced Industrial Science and Technology Junichiro Kono/Rice University Mackillo Kira/University of Michigan

We demonstrate direct detection of stimulated emission from individual colloidal nanocrystals at room temperature, while simultaneously recording the depleted spontaneous emission, enabling us to trace the carrier population through the entire photo-cycle.

Authors:Lukasz Piatkowski/Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland. Nicolò Accanto/ICFO -Institut de Ciencies Fotoniques Gaëtan Calbris/ICFO -Institut de Ciencies Fotoniques Sotirios Christodoulou/ICFO -Institut de Ciencies Fotoniques iwan moreels/Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000 Gent, Belgium. Niek van Hulst/ICFO -Institut de Ciencies Fotoniques

Spectrally tunable quantum emitters (QEs) at predetermined locations can enable scalable quantum technologies. We employ a van-der Waals’ capacitor on nanopillars to deterministically create QEs in monolayer WSe₂ and tune their energies by applying electric field.

Authors:ARUNABH MUKHERJEE/University of Rochester Chitraleema Chakraborty/Harvard University Liangyu Qiu/University of Rochester Nickolas Vamivakas/University of Rochester

We use time resolved photoemission electron microscopy to visualize the nanoscale hole trapping dynamics in hybrid organic-inorganic perovskite films. The trapping kinetics are found to be limited by carrier diffusion to the trap sites.

Authors:Andrew Winchester/Okinawa Institute of Science and Technology Stuart Macpherson/University of Cambridge Vivek Pareek/Okinawa Institute of Science and Technology Sofiia Kosar/Okinawa Institute of Science and Technology Mojtaba Abdi-Jalebi/University of Cambridge Zahra Andaji-Garmaroudi/University of Cambridge Christopher Petoukhoff/Okinawa Institute of Science and Technology E Laine Wong/Okinawa Institute of Science and Technology Julien Madéo/Okinawa Institute of Science and Technology Michael Man/Okinawa Institute of Science and Technology Samuel Stranks/University of Cambridge Keshav Dani/Okinawa Institute of Science and Technology

We investigate the interaction of the optical electric field of intense sub-picosecond infrared pulses, between 3.5 and 12 micrometers, with visible quantum dots materials. Significant visible luminescence is observed from upconversion of the infrared light.

Authors:Ibrahim Boulares/U.S. Army Research Laboratory Jiaojian Shi/Massachusetts Institute of Technology Blair Connelly/U.S. Army Research Laboratory Keith Nelson/Massachusetts Institute of Technology

We measure the nonlinear refractive index n₂, two-photon absorption coefficient, and hot-electron nonlinearity of gated graphene in the mid-IR regime. Our results show that both the magnitude and sign of n₂ can be voltage-controlled.

Authors:Gauri Patwardhan/Cornell University M. Jadidi/Columbia University Brian Lee/Columbia University Ipshita Datta/Columbia University Jared Ginsberg/Columbia University Cecilia Chen/Columbia University Michal Lipson/Columbia University Alexander Gaeta/Columbia University

We demonstrate room-temperature ultralong-range transport >80 μm of exciton-polaritons in a disordered organic thin-film using a one-sided distributed Bragg reflector, which is orders of magnitude larger than expected for excitons in disordered systems.

Authors:Shaocong Hou/University of Michigan Mandeep Khatoniar/City College of New York Kan Ding/University of Michigan Yue Qu/University of Michigan Vinod Menon/City College of New York Stephen Forrest/University of Michigan

Strong coupling of intersubband excitation until recently was observed only in large-scale systems. We demonstrate intersubband polariton formation in an isolated nanoantenna using near-field spectroscopy, enabling investigations of light-matter interaction in the single nanoantenna regime.

Authors:Chih-Feng Wang/UNM Terefe Habteyes/UNM Ting Luk/CINT John Klem/Sandia NL Hou-Tong Chen/CINT Igal Brener/CINT Oleg Mitrofanov/University College London

In this talk, I will present an overview of the current state-of-the-art in the design of solid-state short-pulsed and high-power laser systems for industrial applications based on the hybrid approach.

Authors:Regina Gumenyuk/Ampliconyx Oy

Squared Lasers is developing Semiconductor disk lasers as an attractive compact and low-cost alternative to Titanium-sapphire based systems for markets such as nonlinear microscopy and quantum technologies.

Authors:Graeme Malcolm/M Squared Lasers Ltd Christopher Head/M Squared Lasers Ltd

Two approaches to get one-picosecond pulses on hundred pJ pulse energy scale from edge-emitting lasers are reported. One approach is based on very long tapered mode-locked lasers. The second utilizes short cavities in superradiance regime.

Authors:Dmitri Boiko/CSEM

Novel 940 nm (quasi-)coherent VCSEL array (3x3) is demonstrated. It exhibits high-power (62.4 mW), single-spot output with narrow divergence angle (~5⁰) over the full range of bias currents, and wide 3-dB E-O bandwidth (10 GHz).

Authors:Zuhaib Khan/National Central University Jie-Chen Shih/National Central University Yung-Hao Chang/National Central University Jin-Wei Shi/National Central University

An ultra-short pulsed, ultra-broadband (~13nm-~13µm) light-source has been developed to drive atto- to femto- second time-resolved studies on EUV photo-resist materials. The same source will also be used to investigate EUV driven nano-lithography.

Authors:Seth Cousin/KM Labs Clayton Bargsten/KM Labs Eric Rinard/KM Labs Rod Ward/KM Labs Erik Hosler/KM Labs Brennan Petersen/KM Labs Henry Kapteyn/KM Labs Pieter Vanelderen/imec John Petersen/imec Paul van der Heide/imec

Quantum computing is set to revolutionize information technologies. In this talk I will outline the photonics approach to quantum computing, introducing the silicon photonic quantum circuit and highlighting approaches to manufacturability and scalability.

Authors:Mark Thompson/PsiQuantum

A single-stage distributed Bragg filter in silicon waveguide has been demonstrated with a rejection bandwidth of 7-nm and ultra-high extinction of ∼ 55-dB; suitable towards silicon quantum photonic chip operating at λ ∼ 1.55 μm for on-chip pump rejection.

Authors:Arnab Goswami/IIT Madras Bijoy Das/IIT Madras

Feasibilities of Electro-Optical integration for ion-trapping in quantum computing are demonstrated. Photonics devices exhibit ~33% coupling efficiency and 1.12 dB/cm propagation loss. Wide positional tolerance of ± 10 µm is obtained for optical addressing of trapped ion.

Authors:Yu Dian Lim/Nanyang Technological University Jing Tao/Nanyang Technological University Peng Zhao/Nanyang Technological University Hong Yu Li/Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR) Anak Agung Alit Apriyana/Nanyang Technological University Luca Guidoni/Université Paris Diderot Chuan Seng Tan/Nanyang Technological University

We demonstrate how an existing simulation framework for modelling classical optical systems can be utilized for simulations of weak-coherent QKD links.

Authors:Sören Kreinberg/VPIphotonics GmbH Piotr Novik/VPI Development Center Igor Koltchanov/VPIphotonics GmbH André Richter/VPIphotonics GmbH

We propose a high efficiency reconciliation method for continuous-variable quantum key distribution over free-space channel, which achieves stable reconciliation efficiency of more than 95% under the fluctuation of the SNR (as low as -16 dB).

Authors:Chao Zhou/Beijing University of Posts and Telecomm Xiangyu Wang/Beijing University of Posts and Telecomm Yichen Zhang/Beijing University of Posts and Telecomm Zhiguo Zhang/Beijing University of Posts and Telecomm Song Yu/Beijing University of Posts and Telecomm

CV-QKD over long distances requires high reconciliation efficiencies, hence matching error correction code rate vs. SNR. For time-varying quantum channels, we achieve this by adding a controlled amount of digital noise to the measured data.

Authors:Sören Kreinberg/VPIphotonics GmbH Igor Koltchanov/VPIphotonics GmbH André Richter/VPIphotonics GmbH

A new entanglement-verification method is introduced and experimentally verified with a six-photon cluster state. We demonstrate that it is possible to efficiently detect multipartite entanglement with only a few copies of the state.

Authors:Valeria Saggio/University of Vienna Aleksandra Dimic/University of Belgrade Chiara Greganti/VitreaLab GmbH Lee Rozema/University of Vienna Borivoje Dakic/University of Vienna Philip Walther/University of Vienna

We investigate the effects of ridge width on the characteristics of quantum cascade laser frequency combs and study how to achieve optimal performance. Very narrow ridges lead to much broader lasing spectra but also results in weaker comb stability.

Authors:ruijun wang/ETH Zürich Filippos Kapsalidis/ETH Zürich Mehran Shahmohammadi/ETH Zürich Mattias Beck/ETH Zürich Jérôme Faist/ETH Zürich

We demonstrate a single longitudinal mode, tunable mid-IR laser by self-injection locking a multiple longitudinal mode Interband Cascade Laser (ICL) to a high-Q Si microresonator at 3.4 μm.

Authors:Euijae Shim/Columbia University Andres Gil-Molina/Columbia University ohad Westreich/Columbia University Yamac Dikmelik/Thorlabs, Inc. Kevin Lascola/Thorlabs, Inc. Alexander Gaeta/Columbia University Michal Lipson/Columbia University

Quantum cascade and interband cascade lasers are fabricated into surface and substrate emitting coherent light sources and detectors. We report about latest achievements in terms of power, temperature and dynamic performance of on-chip sensing systems.

Authors:Hedwig Knötig/TU Wien Aaron Andrews/TU Wien Borislav Hinkov/TU Wien Robert Weih/nanoplus Nanosystems and Technologies Johannes Koeth/nanoplus Nanosystems and Technologies Benedikt Schwarz/TU Wien Gottfried Strasser/TU Wien

We experimentally build a basic optical neuron by taking advantage of excitability in a semiconductor laser under optical feedback, rather than conventional injection schemes. This optical neuron operates faster than its biological and electronical counterparts

Authors:Olivier Spitz/Télécom Paris Jiagui Wu/University of California Los Angeles Mathieu Carras/mirSense Grégory Maisons/mirSense Chee Wei Wong/University of California Los Angeles Frédéric Grillot/Télécom Paris

We present an accurate mid-infrared nonlinear reflectivity characterization with a precision of <0.1%. MBE-grown InGaSb-quantum-well SESAMs at 2.05µm show a good modulation depth between 1 - 2.2%, low saturation fluence ~4µJ/cm² and excellent nonsaturable losses.

Authors:Jonas Heidrich/ETH Zürich Marco Gaulke/ETH Zürich Ajanta Barh/ETH Zürich Matthias Golling/ETH Zürich Behçet Özgür Alaydin/ETH Zürich Ursula Keller/ETH Zürich

Recent advances in midwave infrared interband cascade laser (ICL) technology include novel distributed feedback configurations, frequency combs, dual-comb spectroscopy, vertical-cavity surface-emitting lasers, light-emitting devices, and ICLs incorporated into photonic integrated circuits on silicon and III-V platforms.

Authors:Igor Vurgaftman/US Naval Research Laboratory Chadwick Canedy/US Naval Research Laboratory Chul Kim/US Naval Research Laboratory Mijin Kim/KeyW Corporation Charles Merritt/US Naval Research Laboratory William Bewley/US Naval Research Laboratory Stephanie Tomasulo/US Naval Research Laboratory Jerry Meyer/US Naval Research Laboratory

We demonstrate the importance of the finite extent of the electron bunch width on the spectral power law and the efficiency of high harmonic generation from a relativistic laser interacting with an ultrathin target.

Authors:Nicholas Fasano/Princeton University Matthew Edwards/Princeton University Julia Mikhailova/Princeton University

We use thin solid plates in a double stage multi-plate configuration to produce high-contrast, intense single-cycle pulse at 3 kHz. Generated spectrum spans from 400 to 1000 nm at -20 dB intensity level. Output pulses are compressed down to 2.6 fs (transform-limit 2.55 fs) with an energy of 0.235 mJ

Authors:Meenkyo Seo/Pohang Univ of Science & Technology Tsendsuren Khurelbaatar/Pohang Univ of Science & Technology Sambit Mitra/Max Planck Institute of Quantum Optics Matthias Kling/Max Planck Institute of Quantum Optics Dong Kim/Pohang Univ of Science & Technology

We studied the phase properties of circularly polarized high harmonics (CP-HHs) via interferometric measurements using a mixed gas. The results showed that the phase properties of CP-HHs are well described by a semiclassical model.

Authors:Keisuke Kaneshima/Hokkaido University Takuto Ando/Hokkaido University Taro Sekikawa/Hokkaido University

A distinct interference feature from the different constituent atomic orbitals of molecules is clearly observed in laser-induced electron tunneling spectroscopy. This may be employed to explore the components of the molecular orbitals.

Authors:XuanYang Lai/Wuhan Institute of Physics and Mathematics RenPing Sun/Wuhan Institute of Physics and Mathematics Shaogang Yu/Wuhan Institute of Physics and Mathematics YanLan Wang/Wuhan Institute of Physics and Mathematics Wei Quan/Wuhan Institute of Physics and Mathematics Xiaojun Liu/Wuhan Institute of Physics and Mathematics

We proposed a method to inspect the quality of sake from the ethanol and glucose content of sake, and showed that it can be quantified by Raman spectrometry with calibration curve accuracy, R2 = 0.992 (Ethanol), R2 = 0.932 (Glucose).

Authors:Tetsuya Abe/TOPCON CORPORATION

We use the femtosecond laser direct writing technique to fabricate Rayleigh-scattering based distributed sensing and point sensing devices on single-crystal sapphire optical fiber. This technique can be potentially useful for harsh environment sapphire sensor integration.

Authors:Mohan Wang/University of Pittsburgh Kehao Zhao/University of Pittsburgh Sheng Huang/University of Pittsburgh Yang Yang/University of Pittsburgh Michael Buric/National Energy Technology Laboratory Paul Ohodnicki/National Energy Technology Laboratory Bo Liu/National Energy Technology Laboratory Kevin Chen/University of Pittsburgh

Theoretical study to improve Thermo-Photo-Voltaic (TPV) Selective Emitters (SE) based on specialized grey body dielectric materials by adding microstructures which work within the body of semi-transparent SEs to refine their surface output spectrum.

Authors:Frank Stake/Freelance

We propose a strongly nonreciprocal thermal emitter based on magnetic Weyl semimetals. Such an emitter enables near complete violation of Kirchhoff's law over broad angular and frequency ranges without an external magnetic field.

Authors:Bo Zhao/Stanford University Cheng Guo/Stanford University Christina Garcia/Harvard University Prineha Narang/Harvard University Shanhui Fan/Stanford University

We study the optical and electrical losses in PEDOT:PSS/n-Si solar cells using spectroscopic ellipsometry and current-voltage measurements. We clarify the role of interfacial layer in optical reflection and recombination of charge carriers.

Authors:Anastasiia Mykytiuk/Taras Shevchenko National University of Kyiv Serhii Kondratenko/Taras Shevchenko National University of Kyiv

A broadband metamaterial absorber based on the novel design of the combination of cross and slotted-square graphene sheets is presented and analyzed from the perspectives: perfect absorptivity, absorption bandwidth, tunability and insensitivity.

Authors:Xuemei Du/Beijing Jiaotong University Fengping Yan/Beijing Jiaotong University Wei Wang/Beijing Jiaotong University Luna Zhang/Beijing Jiaotong University zhuoya bai/Beijing Jiaotong University

We construct an alignment-free, planar optical system consisting of diffraction gratings and micro-prism array that pre-conditions near-infrared sunlight for broadband omni-resonant enhancement of a solar cell photocurrent.

Authors:Abbas Shiri/University of Central Florida, CREOL Massimo L. Villinger/University of Central Florida, CREOL Christopher H. Villinger/University of Central Florida, CREOL Ayman Abouraddy/University of Central Florida, CREOL

We present a learning-based technique to develop a reliable tool for discovering the underlying physics and feasibility of achieving different type of responses in electromagnetic nanostructures.

Authors:Yashar Kiarashinejad/Georgia Institute of Technology Mohammadreza Zandehshahvar/Georgia Institute of Technology Sajjad Abdollahramezani/Georgia Institute of Technology Omid Hemmatyar/Georgia Institute of Technology Reza Pourabolghasem/Independent researcher Ali Adibi/Georgia Institute of Technology

Pyramid structure was used as a resonance cavity for lasing, encapsulated with stilbene420 dye. Light is confied and multiply reflected at the boundary, thus enhancing the fluorescence. With a small threshold, a laser emission occurs.

Authors:Hsia Yu Lin/National Taiwan University Siang Yao Tan/National Taiwan University Yun Tzu Hsu/National Taiwan University Cheng Fu Hou/National Taiwan University Yang Fang Chen/National Taiwan University

We report a novel scheme for photonic discrete-time quantum walks, using transverse spatial modes of photons and programmable spatial light modulators (SLM). Our scheme enables simulation of arbitrary steps, only limited by the SLM resolution

Authors:Graciana Puentes/Universidad de Buenos Aires Leonardo Neves/Universidade Federal de Minas Gerais

We theoretically introduce a family of Hardy-like proofs which lead to stronger noncontextuality inequalities than that of extended KCBS. Meanwhile, we experimentally verify the simplest Hardy-like proof based on a four-dimensional photonic system.

Authors:Wen-Rong Qi/Nankai University Jie Zhou/Nankai University Ling-Jun Kong/Nanjing University Chenghou Tu/Nankai University Yongnan Li/Nankai University Adán Cabello/Universidad de Sevilla Jing-Ling Chen/Nankai University Hui-Tian Wang/Nanjing University

Photon-pair generation via spontaneous parametric downconversion (SPDC) has been widely used for optical quantum information experiments. We demonstrate high-precision spectral measurements of SPDC sources, utilizing frequency-resolved sum-frequency generation, a reverse process of SPDC.

Authors:Fumihiro Kaneda/Tohoku University Jo Oikawa/Tohoku University Yasuyoshi Mitsumori/Tohoku University Keiichi Edamatsu/Tohoku University

We present a gate-tunable single-photon emitting diode based on a color center in 4H-SiC whose emission rate can be dynamically switched from 0.16 to 40 Mcps with a characteristic time of only 200 ps

Authors:Igor Khramtsov/Moscow Institute of Physics & Technology Dmitry Fedyanin/Moscow Institute of Physics & Technology

We demonstrated high-dimensional time-frequency entanglement with a mode-locked biphoton frequency comb. Hong-Ou-Mandel interference and joint spectral intensity measurements are performed, and we estimated Hilbert space dimensionality of at least 3481 via Schmidt mode decompositions.

Authors:KAI-CHI CHANG/UCLA Xiang Cheng/UCLA Murat Sarihan/UCLA Abhinav Kumar/UCLA Yoo Seung Lee/UCLA Tian Zhong/University of Chicago Yan-Xiao Gong/Nanjing university Zhenda Xie/Nanjing university Jeffrey shapiro/MIT Franco Wong/MIT Chee Wei Wong/UCLA

A semiconductor chip to generate and verify the photonic dimers, a quantum photonic state, is proposed and analyzed, even in the limit of low efficiency.

Authors:JUHYEON KIM/University of Michigan Donato Mastropietro/University of Michigan Duncan Steel/University of Michigan Jung-Tsung Shen/Washington University in St. Louis Pei-Cheng Ku/University of Michigan

We implement a nondegenerate polarization-correlated photon-pair source on titanium-diffused nonperiodically-poled lithium niobate waveguides. The nonperiodic domains are optimized using genetic algorithm to maximize and equalize efficiencies of the spontaneous parametric down-conversion processes

Authors:Hung-Pin Chung/National Central University Jasleen Lugani/Friedrich-Schiller-Universität Jena Wen-Chiuan Su/National Central University Pawan Kumar/Friedrich-Schiller-Universität Jena Yang-Teng Le/National Central University Thomas Pertsch/Friedrich-Schiller-Universität Jena Frank Setzpfandt/Friedrich-Schiller-Universität Jena Yen-Hung Chen/National Central University

We investigate the relation between the squeezing level, chirp parameter of pulses, and the effect of group velocity difference in nonlinear crystals through time-domain analysis, which realizes straightforward evaluation of picosecond pulsed squeezing.

Authors:Yoshitaka Taguchi/The University of Tokyo Yasuyuki Ozeki/The University of Tokyo

We describe a novel scheme for spatial-mode-entangled photon-pair generation in a few-mode fiber. We experimentally verify the underlying inter-modal parametric processes with two-mode classical signal input and demonstrate high mode purity of the generated idler.

Authors:Afshin Shamsshooli/University of Texas at Arlington Cheng Guo/University of Texas at Arlington Francesca Parmigiani/Microsoft Research Xiaoying Li/Tianjin University Michael Vasilyev/University of Texas at Arlington

We present spectroscopy measurements of individual InAsP quantum dots in photonic nanowires using (i) a home-build Czerny Turner spectrometer with an astronomy camera and (ii) an economical sub-picometre laser wavemeter from MOGLabs.

Authors:Jiawei Qiu/Institute of Quantum Computing Divya Bharadwaj/Institute of Quantum Computing Paul Anderson/Institute of Quantum Computing Sonell Malik/Institute of Quantum Computing Behrooz Semnani/Institute of Quantum Computing Mohd Zeeshan/Institute of Quantum Computing Philip Poole/National Research Council of Canada Dan Dalacu/National Research Council of Canada Michael Reimer/Institute of Quantum Computing Michal Bajcsy/Institute of Quantum Computing

We describe a binning-free method to quantify primary dark counts and afterpulses in free-running SPADs, requiring fewer samples than histogramming. This technique can enhance TCSPCs such as ToF LiDARs and fluorescence lifetime instruments.

Authors:Danielius Kramnik/Massachusetts Institute of Technology Rajeev Ram/Massachusetts Institute of Technology

We use a spatial light modulator and a genetic algorithm to manipulate the spatial profile of the pump beam of a down-conversion source in order to improve its Klyshko efficiency.

Authors:Javier Sabines Chesterking/university of Bristol Paul-Antoine Moreau/university of Glasgow Alex McMillan/university of Bristol robert fickler/Tampere University John Rarity/university of Bristol Jonathan Matthews/university of Bristol

We demonstrate that telecom band photon pairs with a factorable joint spectrum can be generated via inter-modal spontaneous four-wave mixing in a two-mode few-mode fiber supporting the LP01 and LP11 spatial modes.

Authors:Liang Cui/Tianjin University Jinjin Wang/Tianjin University Xiaodong Liu/Tianjin University Xiaoying Li/Tianjin University

A comprehensive design strategy using waveguide-integrated-metasurface is proposed for versatile on-chip light-coupling. The coupling-direction, operation-wavelength and excited-mode-type are configurable at will for arbitrary polarizations, with high efficiency of 67% and directivity over 20 dB.

Authors:Yuan Meng/Tsinghua University Zhoutian Liu/Tsinghua University Ride Wang/Nankai University Tiancheng Qi/Tsinghua University Futai Hu/Tsinghua University Qiang Wu/Nankai University Qirong Xiao/Tsinghua University Sang-Hoon Bae/Massachusetts Institute of Technology Hyunseok Kim/Massachusetts Institute of Technology Mali Gong/Tsinghua University

This work presents a data driven method to retrieve the geometry of a coupled waveguide system from the measured intensity of the electric field. It is shown that neural networks perform better than kNN regression.

Authors:Tom Coen/Tel Aviv University Hadar Greener/Tel Aviv University Michael Mrejen/Tel Aviv University Lior Wolf/Tel Aviv University Haim Suchowski/Tel Aviv University

We report a non-volatile integrated photonic platform enabled by the broadband transparent phase change material Sb₂S₃. Extreme low loss and non-volatile switching was demonstrated with <10 reduction in Q factor and over 30dBm extinction ratio.

Authors:Zhuoran Fang/University of Washington

An opto-electronic reservoir computer based on a light valve, multimode fiber speckle, and a camera combined with back-end signal processing experimentally performs blind signal classification for return-to-zero and non-return-to-zero communications signals at low signal-to-noise
ratio.

Authors:Marta Luengo-Kovac/The Aerospace Corporation Uttam Paudel/The Aerospace Corporation Thomas Shaw/The Aerospace Corporation George Valley/The Aerospace Corporation

In universal linear optics, programmable photonic circuits perform an arbitrary linear transformation by the sequential multiplication of two-level achromatic unitary operators. Based on cascaded optical resonator-based building blocks, we construct an arbitrary multi-wavelength unitary operator.

Authors:Taewon Park/KAIST Youngjae Jeong/KAIST Kyoungsik Yu/KAIST

An efficient nonlinear activation function for optical neural network is proposed and demonstrated by executing complex-valued algorithms and intensity measurement. Great learning capability are achieved by the inherent properties of the complex-valued optical neural network.

Authors:Hui Zhang/Nanyang Technological University Lingxiao Wan/Nanyang Technological University Mile Gu/Nanyang Technological University Xudong Jiang/Nanyang Technological University Jayne Thompson/National University of Singapore Hong Cai/Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research) Stefano Paesani/University of Bristol Raffaele Santagati/University of Bristol Anthony Laing/University of Bristol Patrick Guo-Qiang Lo/Advanced Micro Foundry Dim-Lee Kwong/Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research) Leong Chuan Kwek/National University of Singapore Ai Qun Liu/Nanyang Technological University

We demonstrate a geometrically-optimized, silicon nitride, thermo-optic phase modulator, with a record-low P_2π = 10.7 mW, operating in the red visible wavelength range that is fabricated in a commercial foundry silicon photonics process.

Authors:Samer Idres/University of Southern California Hossein Hashemi/University of Southern California

We propose an on-chip optical Elman recurrent neuron network (RNN) architecture for high-speed sequence processing using Mach-Zehnder interferometers and looped waveguides. The proposed design paves way for future integrated-photonics-based artificial intelligence hardware design.

Authors:Chenghao Feng/University of Texas at Austin Zheng Zhao/University of Texas at Austin Zhoufeng Ying/University of Texas at Austin Jiaqi Gu/University of Texas at Austin David Pan/University of Texas at Austin Ray Chen/University of Texas at Austin

We show a novel multiple I/O photonic packaging method for 4-fiber array using fusion splicing. We demonstrate a minimum loss of 2.5dB per facet with a variation of +/-0.1dB through a 4-fiber array.

Authors:Juniyali Nauriyal/University of Rochester Meiting Song/University of Rochester Marissa Granados Báez/University of Rochester Yi Zhang/University of Rochester Jaime Cardenas/University of Rochester

We demonstrate a thin-film LiNbO3 Mach-Zehnder modulator with polymer edge coupler. The modulator exhibits a half-wave voltage of 2 V, insertion loss less than 5 dB and modulation speed up to 128 Gb s⁻¹.

Authors:pan ying/Sun Yat-Sen University Shihao Sun/Sun Yat-Sen University Mengyue Xu/Sun Yat-Sen University Mingbo He/Sun Yat-Sen University Siyuan Yu/Sun Yat-Sen University Xinlun Cai/Sun Yat-Sen University

We experimentally show that azimuthally apodized circular gratings can allow light to penetrate further into the structure, and create a focus of ≈10 μm, allowing for biomedical applications such as OCT.

Authors:Rijan Maharjan/Phutung Research Institute Sanket Bohora/Phutung Research Institute Richard Hogg/University of Glasgow David Childs/University of Glasgow Richard Curry/University of Manchester Iain Crowe/University of Manchester Ashim Dhakal/Phutung Research Institute

We demonstrate a CMOS compatible interferometric plasmo-photonic sensor exploiting Si₃N₄ photonic and aluminum (Al) plasmonic stripe waveguides. Experimental evaluation revealed bulk sensitivity of 4764 nm/RIU, holding promise for ultra-sensitive and low cost sensing devices.

Authors:Evangelia Chatzianagnostou/Aristotle University of Thessaloniki, Center for Interdisciplinary Research and Innovation Athanasios Manolis/Aristotle University of Thessaloniki, Center for Interdisciplinary Research and Innovation George Dabos/Aristotle University of Thessaloniki, Center for Interdisciplinary Research and Innovation Dimitra Ketzaki/Aristotle University of Thessaloniki, Center for Interdisciplinary Research and Innovation Bartos Chmielak/AMO GmbH, Advanced Microelectronic Center Aachen (AMICA) Anna-Lena Giesecke/AMO GmbH, Advanced Microelectronic Center Aachen (AMICA) Caroline Porschatis/AMO GmbH, Advanced Microelectronic Center Aachen (AMICA) Piotr Cegielski/AMO GmbH, Advanced Microelectronic Center Aachen (AMICA) Stephan Suckow/AMO GmbH, Advanced Microelectronic Center Aachen (AMICA) Laurent Markey/Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS-Université de Bourgogne Jean-Claude Weeber/Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS-Université de Bourgogne Alain Dereux/Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS-Université de Bourgogne Stefan Schrittwieser/Molecular Diagnostics, AIT Austrian Institute of Technology Rudolf Heer/Molecular Diagnostics, AIT Austrian Institute of Technology Nikos Pleros/Aristotle University of Thessaloniki, Center for Interdisciplinary Research and Innovation Dimitris Tsiokos/Aristotle University of Thessaloniki, Center for Interdisciplinary Research and Innovation

We present a compact, single microring resonator with a tunable coupler to measure waveguide losses. The method is demonstrated by extracting the propagation losses of 550 nm and 600 nm wide SOI rib waveguides.

Authors:Hossam Shoman/University of British Columbia Hasitha Jayatilleka/Intel Corporation Nicolas Jaeger/University of British Columbia Sudip Shekhar/University of British Columbia Lukas Chrostowski/University of British Columbia

We experimentally demonstrated photonic integrated circuits with bound states in the continuum by patterning low-index waveguides on a high-index substrate. We also demonstrated high-Q microcavities, directional couplers, and electro-optic modulators working under this principle.

Authors:Zejie Yu/The Chinese University of Hong Kong Xiang Xi/The Chinese University of Hong Kong Jingwen Ma/The Chinese University of Hong Kong Hon Ki Tsang/The Chinese University of Hong Kong Chang-Ling Zou/University of Science and Technology of China Xiankai Sun/The Chinese University of Hong Kong

Utilizing single DD-MZM modulation and optical heterodyne detection based on a single-ended photodiode, two identical frequency 5 Gbaud 16-QAM signals can be successfully recovered over 100-km SSMF with only 0.6 dB receiver sensitivity penalty.

Authors:Yuancheng Cai/University of Electronic Science and Technology of China Xiang Gao/University of Electronic Science and Technology of China Yun Ling/University of Electronic Science and Technology of China Bo Xu/University of Electronic Science and Technology of China Kun Qiu/University of Electronic Science and Technology of China

A 15°×12° integrated two-dimensional beam-steering device based on an on-chip silicon-nitride switch/emitter structure and off-chip cylindrical lens is demonstrated. The staircase grating emitters allow a directional emission greater than 90%.

Authors:Chao Li/Shanghai Jiao Tong University Xianyi Cao/Shanghai Jiao Tong University Minglu Cai/Central South University Kan Wu/Shanghai Jiao Tong University Xinwan Li/Shanghai Jiao Tong University Jianping Chen/Shanghai Jiao Tong University

Compact, re-configurable integrated photonic devices are important for communications and computing applications. In this work, we demonstrate an integrated silicon photonic tunable multimode interferometer with > 25 dB tunabilty per port, optimized experimentally with an evolutionary algorithm.

Authors:Matthew van Niekerk/Rochester Institute of Technology David Starling/Pennsylvania State University Gregory Howland/Rochester Institute of Technology Gerald Leake/SUNY Polytechnic Institute Alin Antohe/SUNY Polytechnic Institute Siti Binti/SUNY Polytechnic Institute Daniel Coleman/SUNY Polytechnic Institute A. Matthew Smith/Air Force Research Laboratory Christopher Tison/Air Force Research Laboratory MIchael Fanto/Rochester Institute of Technology Stefan Preble/Rochester Institute of Technology

We demonstrate reconfigurable microwave photonic filters based on two-soliton microcombs. The filter passbands can be reconfigured inherently via the various angles between two solitons of microresonator, without involving programmable pulse shapers.

Authors:Jianqi Hu/Swiss Federal Institute of Technology in Lausanne (EPFL) Jijun He/Swiss Federal Institute of Technology in Lausanne (EPFL) Junqiu Liu/Swiss Federal Institute of Technology in Lausanne (EPFL) Arslan Raja/Swiss Federal Institute of Technology in Lausanne (EPFL) Maxim Karpov/Swiss Federal Institute of Technology in Lausanne (EPFL) Anton Lukashchuk/Swiss Federal Institute of Technology in Lausanne (EPFL) Tobias Kippenberg/Swiss Federal Institute of Technology in Lausanne (EPFL) Camille-Sophie Brès/Swiss Federal Institute of Technology in Lausanne (EPFL)

Photonic integration of GaN and Si-SiN platforms at the shortest visible wavelength is reported. Maximum theoretical coupling efficiencies up to 51% and 24% for a vertical grating coupler (fiber-chip) and hybrid integration, respectively, are achieved.

Authors:Riazul Arefin/The Ohio State University Sujit Ramachandra/The Ohio State University Hyemin Jung/The Ohio State University Syed M. N. Hasan/The Ohio State University Weicheng You/The Ohio State University Sarvagya Dwivedi/IMEC Shamsul Arafin/The Ohio State University

We demonstrate robust and low loss coupling into photonic crystal waveguide by using a one-dimensional dielectric metalens.

Authors:Yahui Xiao/University of Delaware Zi Wang/University of Delaware Feifan Wang/University of Delaware Thomas Kananen/University of Delaware Hwaseob Lee/University of Delaware Tingyi Gu/University of Delaware

Here, we demonstrate the fabrication of tungsten di-sulfide integrated photodetector on silicon nitride photonic platform. We observe high responsivity of ~100mA/W at exciton wavelength (~625 nm) due to strong photo-absorption.

Authors:Chandraman Patil/George Washington University RISHI MAITI/George Washington University Volker Sorger/George Washington University

We present efficient coupling schemes based on direct-laser-writing to enable broadband interfacing of nanophotonic circuits to optical fibers. We demonstrate wide bandwidth coupling at both telecom and visible wavelengths.

Authors:Helge Gehring/Universität Münster Wolfram Pernice/Universität Münster

Widely adopted holographic projection technique of light field requires high level of integration and versatility in various areas. We demonstrated integrated optical holographic devices with wavelength-multiplexing based on a photonic integrated metasurface.

Authors:Yimin Ding/The Pennsylvania State University Yao Duan/The Pennsylvania State University Xi Chen/The Pennsylvania State University Haiyang Huang/The Pennsylvania State University Xuexue Guo/The Pennsylvania State University xingjie ni/The Pennsylvania State University

We demonstrate optical phase modulation in a Si waveguide by generation of surface acoustic wave using Lead Zirconate Titanate (PZT) thin film. Our measurement shows a V_πL ≈ 3.35 V cm before any device-optimization.

Authors:Irfan Ansari/UGent

We introduce a sparse photonic integrated circuit outcoupling (PICO) array for use with fast steering mirrors in a hybrid imaging-based beam steering (IBBS) system for free-space optical communications and LIDAR applications.

Authors:Sajad Saghaye Polkoo/University of Central Florida, CREOL Christopher Renshaw/University of Central Florida, CREOL

We demonstrate a novel technique for the automated synthesis of photonic structures in a field-programmable photonic gate array using first-order optimization techniques and defining customized cost functions as per their main figures of merit.

Authors:Aitor López Hernández/Universitat Politècnica de València Daniel Pérez/Universitat Politècnica de València Prometheus DasMahapatra/Universitat Politècnica de València José Capmany/Universitat Politècnica de València

We achieve 40 Gb/s operation of a low-loss modulator and generation of an optical frequency comb with spacing of 16.3 GHz on lithium niobate on insulator platform. These devices are based on distributed Bragg reflectors.

Authors:Mengyue Xu/Sun Yat-Sen University Mingbo He/Sun Yat-Sen University Xiaoyue Liu/Sun Yat-Sen University pan ying/Sun Yat-Sen University Siyuan Yu/Sun Yat-Sen University Xinlun Cai/Sun Yat-Sen University

Universal linear processing circuit based on multi-plane light conversion, comprising multiport directional couplers, is demonstrated to exhibit excellent fabrication tolerance even at increased scale, owing to its unique all-to-all unitary coupling at every layer.

Authors:Ryota Tanomura/the University of Tokyo Rui Tang/the University of Tokyo Takuo Tanemura/the University of Tokyo Yoshiaki Nakano/the University of Tokyo

A novel method of wideband radiofrequency signal generation is proposed based on photonic phase digitizing and heterodyne mixing. Synthesis of a linear frequency-modulated radar waveform with a bandwidth of 4 GHz is demonstrated.

Authors:Jiading Li/Tsinghua University Xiaoxiao Xue/Tsinghua University Shangyuan Li/Tsinghua University Xiaoping Zheng/Tsinghua University

Based on InP platform, we design and optimize a compact integrated device to realize efficient lasing of azimuthally polarized beam. Single-mode selection, emission and high speed can be achieved under electrical pumping.

Authors:Shuang Zheng/Wuhan National Laboratory for Optoelectr xiang ma/Wuhan National Laboratory for Optoelectr quanan chen/Wuhan National Laboratory for Optoelectr qiaoyin lu/Wuhan National Laboratory for Optoelectr Weihua Guo/Wuhan National Laboratory for Optoelectr Jian Wang/Wuhan National Laboratory for Optoelectr

We demonstrate on-chip monolithically integrated hybrid (de)multiplexer with 4×32 channels for simultaneous mode- and wavelength-division multiplexing for ultra-large capacity optical interconnect link. The chip consists of 4-channel mode (de)multiplexer and 32-channel arrayed waveguide grating.

Authors:Xiaoping Cao/WNLO Shuang Zheng/WNLO Feng Cui/WNLO Jian Wang/WNLO

Interaction of HfO₂/SiO₂-based multilayer thin films and 10-, 100-fs high intensity laser pulses are simulated using finite-difference time-domain method coupled with Keldysh ionization model to assist in design of damage resistant ultrabroad-band optics.

Authors:Simin Zhang/The Ohio State University Noah Talisa/The Ohio State University Carmen Menoni/Colorado State University Vitaly Gruzdev/University of New Mexico Enam Chowdhury/The Ohio State University

We demonstrated efficient Kerr comb generation in an ultra-high Q MgF₂ with an output power of 0 dBm/channel that is aligned with a 25 GHz ITU-T grid suitable for DWDM telecom applications.

Authors:KOSHIRO WADA/Keio University Shun Fujii/Keio University Hajime Kumazaki/Keio University Tamiki Ohtsuka/Keio University Shota Sota/Keio University Satoki Kawanishi/Keio University Takasumi Tanabe/Keio University

We present a method for the optimization of complex laser systems and laser shaping tools using a genetic algorithm utilizing accurate simulation based on Fourier optics.

Authors:Randy Lemons/Colorado School of Mines Sergio Carbajo/SLAC National Accelerator Laboratory

We experimentally demonstrate that the group-velocity-dispersion of silica microspheres can be engineered by coating it with nanometer-thick layers of alumina (Al2O3). The ultra-high optical quality factor (>10 millions) achieved allows for the generation of broadband frequency combs.

Authors:Marvyn Inga Caqui/University of Campinas Laís Fujii do Santos/University of Campinas Jose Maria Silva Filho/University of Campinas Yovanny Espinel/University of Campinas Francisco Marques/University of Campinas Thiago Mayer Alegre/University of Campinas Gustavo Wiederhecker/University of Campinas

We study the nonlinear absorption properties of aza-borondipyrromethene dyes using the Z-scan and transient absorption methods. Near 1200 nm, excited-state absorption due to two-photon excitation appears, which is more pronounced in the brominated dyes.

Authors:Hao-Jung Chang/University of Central Florida Sanaz Faryadras/University of Central Florida Natalia Munera/University of Central Florida Sepehr Benis/University of Central Florida Mykhailo Bondar/University of Central Florida Sylvain David/University of Lyon Oliver Maury/University of Lyon Gerard Berginc/Thales Research & Technology Andraud Chantal/University of Lyon David Hagan/University of Central Florida Eric Van Stryland/University of Central Florida

We employ multidimensional coherent spectroscopy to directly observe and measure the ultrafast relaxation of free carriers in bulk gallium arsenide to form the Sommerfeld enhancement of absorption. We observe two populations with different relaxation dynamics.

Authors:Geoffrey Diederich/University of Denver Adam Halaoui/University of Denver Mark Siemens/University of Denver

We have studied optical properties of single and multi-fold nanoporous gold leaf metamaterials and demonstrated that they can be controlled with applied voltage and dielectric environment.

Authors:Sangeeta Rout/Norfolk State University Zhen Qi/Lawrence Livermore National Laboratory Monika Biener/Lawrence Livermore National Laboratory Devon Courtwright/Norfolk State University Jakeem Adrien/Norfolk State University Carl Bonner/Norfolk State University Mohammad Shahabuddin/Norfolk State University Natalia Noginova/Norfolk State University Mikhail Noginov/Norfolk State University Md Omar Faruk/UCLA

A real-valued neural network overwhelmingly outperforms its complex-valued counterpart in natural scene reconstruction through multimode fiber, suggesting that knowledge of intensity rather than phase information is enough, therefore brings much robustness and convenience in practice.

Authors:Ziyu Wang/Beijing Univ. Posts & Telecomm. Yangyang Xiang/Beijing Univ. Posts & Telecomm. Mingying Lan/Beijing Univ. Posts & Telecomm. Junhui Li/Beijing Univ. Posts & Telecomm. Li Gao/Beijing Univ. Posts & Telecomm. Song Yu/Beijing Univ. Posts & Telecomm. Guohua Wu/Beijing Univ. Posts & Telecomm. Tianwei Jiang/Beijing Univ. Posts & Telecomm.

Considering the demand for increasing complexity in optical fiber cross-sections, we present a novel approach for glass perform fabrication based on 3-D printing and show that it can produce glass preforms with non-equilibrium cross-sections. © 2020 The Author(s)

Authors:Mengxin Zheng/Indiana University Camila Faccini de Lima/Indiana University Veda Narayana Koraganji/Indiana University Alexander Gumennik/Indiana University

High-speed dispersion spectroscopy has been developed with wide dispersion range, while avoiding an increase in imprecision, by 1.4- and 50 GHz frequency intervals parallel processing of single-shot dual-heterodyne mixing combined with an optical frequency comb.

Authors:Nasrin Sultana/Saitama University Hiroali Tada/Saitama University Shioda Tatsutoshi/Saitama University

We present a novel technique to control a half-open cavity laser emission. Fast temporal phase variation acting as an active Q-switch enables controlled pulsed emission of an SOA-based random feedback laser.

Authors:Pedro Tovar/Pontifical Catholic University of Rio de Janeiro Bismarck Lima/Pontifical Catholic University of Rio de Janeiro Jean von der Weid/Pontifical Catholic University of Rio de Janeiro

An innovative ECDL concept based on MEMS technology in NIR and MIR is presented. Results of laser performance and its application as well as the possibility of ultra-fast tuning through MEMS actuators are shown.

Authors:Morten Hoppe/Sacher Lasertechnik GmbH Hanna Rohling/Sacher Lasertechnik GmbH Sebastian Schmidtmann/Sensor Photonics GmbH Herve Tatenguem/Sacher Lasertechnik GmbH Jan Grahmann/Institute for Photonic Microsystems IPMS Tobias Milde/Sacher Lasertechnik GmbH Thomas Schanze/Technische Hochschule Mittelhessen (THM) – Institut für Biomedizinische Technik (IBMT) Joachim Sacher/Sacher Lasertechnik GmbH

Analysis of catastrophically degraded high-power buried-heterostructure quantum cascade lasers, performed near front facets by using focused ion beam and high-resolution TEM techniques, has revealed formation of voids and extensive dislocations away from active regions.

Authors:Yongkun Sin/The Aerospace Corporation Zachary Lingley/The Aerospace Corporation Miles Brodie/The Aerospace Corporation Benjamin Knipfer/University of Wisconsin – Madison C Sigler/University of Wisconsin – Madison C Boyle/University of Wisconsin – Madison J Kirch/University of Wisconsin – Madison K Oresick/University of Wisconsin – Madison H Kim/University of Wisconsin – Madison Dan Botez/University of Wisconsin – Madison Luke Mawst/University of Wisconsin – Madison D Lindberg/Intraband, LLC Tom Earles/Intraband, LLC

We propose a high-power, single transverse mode, edge-emitting diode laser by constructing a triple-ridge waveguide structure. Two integrated lossy auxiliary waveguides are utilized to suppress the unwanted high order modes in the main waveguide.

Authors:Xiao-Lei Zhao/Clemson University Siwei Zeng/Clemson University Yeyu Zhu/Clemson University Ying Wu/Clemson University Lin Zhu/Clemson University

We propose a VCSEL laterally coupled to multiple-cavities providing modulation bandwidth beyond the relaxation-oscillation-frequency. We show a 3dB modulation bandwidth of 45 GHz, five times greater than its conventional VCSEL fabricated on the same epi-wafer.

Authors:Elham Heidari/University of Texas at Austin Hamed Dalir/Omega Optics Inc. Moustafa Ahmed/King Abdul-Aziz University Mohammad Teimourpour/George Washington University Volker Sorger/George Washington University Ray T. Chen/University of Texas at Austin

We evaluated temperature characteristics of QD-based-LDs by ion-implantation-induced-disordering quantum-dot intermixing technique with Ar and B ions, and demonstrated high temperature stability with a characteristic temperature of 284 K and a wavelength shift of 0.15 nm/K

Authors:Atsushi Matsumoto/National Inst of Information & Comm Tech Shohei Isawa/Waseda University Runa Kaneko/Waseda University Kouichi Akahane/National Inst of Information & Comm Tech Toshimasa Umezawa/National Inst of Information & Comm Tech Yuichi Matsushima/Waseda University Katsuyuki Utaka/Waseda University

The surface temperature distribution of 1.5 µm multi-section slotted single-mode semiconductor lasers is determined experimentally using high resolution CCD-TR microscopy. The surface temperature, thermal spreading between sections, longitudinal and lateral temperature profiles are reported.

Authors:Robert Mckenna/Trinity College Dublin Sepideh Naimi/Trinity College Dublin Simon Corbett/Trinity College Dublin David McCloskey/Trinity College Dublin John Donegan/Trinity College Dublin

We stabilize jitter in self-mode-locked quantum dash lasers emitting at 1550nm, reducing pulse train RF linewidth by 100x, using optical feedback from dual fiber loops. We demonstrate how to optimize this method and packaging tolerances.

Authors:John McInerney/UNIVERSITY COLLEGE CORK Haroon Asghar/UNIVERSITY COLLEGE CORK

We present a detailed study to select transverse modes and control far field pattern of a multi-mode HCG-VCSEL using reflection dispersion for the former and angular-dependent transmission for the latter, for the first time.

Authors:Yipeng Ji/Tsinghua University Mingyue Guan/Tsinghua University Jipeng Qi/University of California, Berkeley Connie Chang-Hasnain/University of California, Berkeley

We demonstrate an optically-pumped mid-infrared InGaAsSb/AlGaAsSb type-I QW surface-emitting laser operated at 2.26 mm using double-lattice photonic crystal structure. Light output intensity of the device with double-lattice structures was enhanced by an order of magnitude than that of single-holes.

Authors:YuHsun Huang/National Chiao Tung University SULING CHENG/National Chiao Tung University Gray Lin/National Chiao Tung University Sheng-Di Lin/National Chiao Tung University Kien-Wen Sun/National Chiao Tung University

We present 1.3μm regrowth-free directly-modulated DBR lasers based on V-shaped slotted surface-gratings through standard photolithography. The fabricated laser has achieved the threshold-current ~12mA, SMSR ~50dB from 0°C to 50°C and 3-dB bandwidth ~12GHz.

Authors:Wei Sun/Huazhong University of Sci. Technol Shuangzhi Wei/Huazhong University of Sci. Technol Gonghai Liu/Huazhong University of Sci. Technol Xiangyang Dai/Huazhong University of Sci. Technol Jia Liu/Huazhong University of Sci. Technol Su Tan/Huazhong University of Sci. Technol Qiaoyin Lu/Huazhong University of Sci. Technol John Donegan/School of Physics & CRANN Weihua Guo/Huazhong University of Sci. Technol

A widely tunable semiconductor laser based on slotted surface grating fabricated by standard contact lithography is presented. This regrowth-free tunable semiconductor laser shows a consecutive discrete tuning range over 30-nm with 100-GHz channel spacing.

Authors:Fengxin Dong/CAS Institute of Semiconductors Fangling Du/CAS Institute of Semiconductors Pijie Ma/CAS Institute of Semiconductors Xuyan Zhou/CAS Institute of Semiconductors Wan-hua Zheng/CAS Institute of Semiconductors

Monolithic growth of efficient III-V QD lasers on (111)-faceted hollow SOI substrate has been achieved for realizing silicon photonic integrated circuits. The lasers can be pulse- operated up to 50oC with lasing threshold of ~70mA.

Authors:Qi Feng/Institute of Physics, CAS Zihao Wang/Institute of Physics, CAS Ting Wang/Institute of Physics, CAS

Current-voltage measurements at low voltage indicate that ions move in OLEDs on the first I-V scan. On subsequent scans, molecular rotations result in weak current spikes. As expected, neither current leads to luminescence.

Authors:Fanomezantsoa RATSIMBAZAFY/GCMP - Université de Moncton Serge Gauvin/GCMP - Université de Moncton

InGaN/GaN multiple quantum well LED structure was studied for the possible integration as a detector in future power electronics applications. The electroluminescence (EL) and spectral response were measured from 77 K to 800 K.

Authors:Abbas Sabbar/University of Arkansas Syam Madhusoodhanan/University of Arkansas Huong Tran/University of Arkansas Binzhong Dong/2HC SemiTek Jiangbo Wang/2HC SemiTek Alan Mantooth/University of Arkansas Shuiqing Yu/University of Arkansas zhong chen/University of Arkansas

We experimentally characterize mid-infrared intersubband transitions in identical Al_0.5Ga_0.5N/GaN heterostructures grown on a- and m-plane GaN substrates. The absorption peaks of the m-plane samples are 10 to 40% narrower than that of the a-plane samples.

Authors:Jiaming Xu/University of Texas at Austin Morteza Monavarian/University of California at Santa Barbara Nishant Nookala/University of Texas at Austin Micha Fireman/University of California at Santa Barbara Kai Qwah/University of California at Santa Barbara James Speck/University of California at Santa Barbara Mikhail Belkin/University of Texas at Austin

A shallow-mesa InP avalanche photodiode is proposed and fabricated by a simple dry etching process. The device exhibits a remarkably low dark current of 4 pA at unit gain and a high gain of 320.

Authors:Jingchang Zhang/Tsinghua University Yaru Han/Tsinghua University Bing Xiong/Tsinghua University Yi Luo/Tsinghua University Changzheng Sun/Tsinghua University Lai Wang/Tsinghua University Jian Wang/Tsinghua University Yanjun Han/Tsinghua University Zhibiao Hao/Tsinghua University Hongtao Li/Tsinghua University Jiadong Yu/Tsinghua University

We report the fine-pixel quantum dot (<5mm) deposited on micro-LED chips directly. The electrical and optical characterization shows 35% color conversion efficiency and area-dependent QD emission intensity.

Authors:Yu-Ming Huang/National Chiao Tung University Kai-Ling Liang/Industrial Technology Research Institute of Taiwan Yi-Lin Tsai/National Chiao Tung University Wei-Hung Kuo/Industrial Technology Research Institute of Taiwan Yen-Hsiang Fang/Industrial Technology Research Institute of Taiwan Chung-Ping Huang/National Chiao Tung University Hao-Chung Kuo/National Chiao-Tung University Chien-Chung Lin/National Chiao Tung University

Comb-based O-TWTFT provides exemplary performance in transferring precision timing over km-scale turbulent atmospheric paths. However, its performance through strong turbulence is not fully understood. Here we investigate transient timing deviations associated with low received power.

Authors:William Swann/National Inst of Standards & Technology Martha Bodine/National Inst of Standards & Technology Jennifer Ellis/National Inst of Standards & Technology Emily Hannah/National Inst of Standards & Technology Laura Sinclair/National Inst of Standards & Technology Nathan Newbury/National Inst of Standards & Technology Jean-Daniel Deschenes/National Inst of Standards & Technology

Using a simulated model of a diverging paraxial beam reflected at a plane dielectric interface, we show that the Brewster-reflected beam manifests phase and polarization singularities.

Authors:ANIRBAN DEBNATH/University of Hyderabad Nirmal Viswanathan/University of Hyderabad

We observed that applying tightly focused laser beam, Gouy phase shift plays important role on efficient SHG at interfaces of both isotropic and anisotropic noncentrosymmetric materials. This effect is similar to THG at materials interfaces.

Authors:Jorge Gomes/Instituto de Física de São Carlos, USP Emerson Barbano/Universidade Federal do Parana Sergio Zilio/Instituto de Física de São Carlos, USP Lino Misoguti/Instituto de Física de São Carlos, USP

A novel refractive index sensor based on an exposed-core tellurite microstructure optical fiber has been implemented. The sensitivity of sensor is up to 2919.4nm/RIU. It is reliable, cost-effective and offers a possibility for label-free biosensing.

Authors:Xue Zhou/Northeastern University Tonglei Cheng/Northeastern University Takenobu Suzuki/Research Center for Advanced Photon Technology Yasutake Ohishi/Research Center for Advanced Photon Technology

A self-starting mode-locked laser with low threshold can be achieved using V₂CT_x nanosheets and nonlinear polarization evolution. 72 fs pulse duration is easily achieved from this hybrid mode-locked fiber laser system.

Authors:Chunyang Ma/Shenzhen University Weichun Huang/Shenzhen University Yunzheng Wang/Shenzhen University Han Zhang/Shenzhen University

Here we experimentally show the capability of tailoring the nonlinear all-optical modulation of the complex refractive index in response of pulsed laser in the Epsilon Near Zero (ENZ) region for different deposition conditions of ITO.

Authors:Mario Miscuglio/George Washington University Yaliang Gui/George Washington University Jagannath Paul/National Institute of Standards and Technology Jared Wahlstrand/National Institute of Standards and Technology Volker Sorger/George Washington University

Here, we report the first observation of the fundamental intrinsic anisotropy (61%) in nonlinear absorption (NLA) of Sb₂S₃ nanorods. Experimentally, we found the anisotropy in NLA ΔI_S (anisotropy) ≈ 0.058GW/cm² at a peak intensity of 0.095GW/cm².

Authors:Rajesh Yadav/IISER Bhopal

We demonstrate an innovative approach to eliminate the propagation phase of light pulses by designing an initial phase-locked synchronizing moving source. Counterintuitively, this result shows the propagation phase could be eliminated, for the first time.

Authors:Yao lu/Nankai University hao xiong/Nankai University Qiang Wu/Nankai University Jingjun Xu/Nankai University

Deep-UV radiation is achieved through dispersive wave generation in an argon-filled anti-resonant fiber utilizing a nonlinearly compressed 1030nm pump. Relative intensity noise is characterized at 280nm, with 1.6% achieved for optimal argon-pressure and pump parameters.

Authors:Callum Smith/Technical University of Denmark Asbjørn Moltke/Technical University of Denmark Abubakar Adamu/Technical University of Denmark Mattia Michieletto/NKT Photonics A/S Patrick Bowen/NKT Photonics A/S Peter Moselund/NKT Photonics A/S Christos Markos/Technical University of Denmark Ole Bang/Technical University of Denmark

In this paper we demonstrate the second-harmonic generation of asymmetric Bessel-Gaussian beams carrying orbital angular momentum. One advantage is that the asymmetric Bessel-Gaussian beams offer a chance to tailor the generated field.

Authors:Kunjian Dai/Clemson University Wenzhe Li/Clemson University Kaitlyn Morgan/Clemson University Keith Miller/Clemson University Richard Watkins/Clemson University Eric Johnson/Clemson University

Spontaneous four-wave mixing in a novel tellurite fiber is demonstrated. Using a pumping laser at 1.9 μm, a signal and an idler at 1.25 and 4.1 μm are generated. This corresponds to a frequency shift of 85 THz which is the largest frequency shift in soft-glass fiber ever reported

Authors:Hoa Nguyen/Toyota Technological Institute Than Singh Saini/Toyota Technological Institute Hoang Tuan Tong/Toyota Technological Institute Goichi Sakai/Furukawa Denshi Co Morio Matsumoto/Furukawa Denshi Co Takenobu Suzuki/Toyota Technological Institute Yasutake Ohishi/Toyota Technological Institute

An efficient nonlinear computer-generated optical holograms technique has been demonstrated in lithium niobate crystal, which fabricated by femtosecond laser pulses. The birefringence progress is used to provide the longitudinal phase matching of the wave vectors.

Authors:Bing Zhu/Shanghai Jiao Tong University Haigang Liu/Shanghai Jiao Tong University Yi'an Liu/Shanghai Jiao Tong University Yan Xiongshuo/Shanghai Jiao Tong University Yuping Chen/Shanghai Jiao Tong University Xianfeng Chen/Shanghai Jiao Tong University Xiangmin Liu/Shanghai Jiao Tong University

We develop a unique deep-ultraviolet pulsed laser proposed for achieving laser cooling of positronium. It fulfills a wide bandwidth and a long pulse duration for atoms with a small mass and a finite lifetime.

Authors:Yohei Tajima/The University of Tokyo Kyohei Yamada/The University of Tokyo Kenji Shu/The University of Tokyo Akira Ishida/The University of Tokyo Shoji Asai/The University of Tokyo Makoto Kuwata-Gonokami/The University of Tokyo Eunmi Chae/The University of Tokyo Kosuke Yoshioka/The University of Tokyo

We report third-harmonic generation enhancement with strong polarization-dependence from multilayer graphene on silicon nitride guided-mode resonance structures. These gratings are a promising passive platform with weak inherent nonlinearity for integration with strong nonlinear layered materials.

Authors:Sruti Menon/Indian Institute of Science Medha Dandu/Indian Institute of Science Jayanta Deka/Indian Institute of Science Kausik Majumdar/Indian Institute of Science Varun Raghunathan/Indian Institute of Science

We measure nonlinear refraction and absorption of a CH₃NH₃PbBr₃ single crystal with the Z-scan technique. Our results provide the first reference of the intrinsic, ultrafast nonlinear refractive index in the metal halide perovskite material class.

Authors:Christian Kriso/Philipps-Universität Marburg Markus Stein/Philipps-Universität Marburg Tobias Haeger/University of Wuppertal Neda Pourdavoud/University of Wuppertal Marina Gerhard/Philipps-Universität Marburg Arash Rahimi-Iman/Philipps-Universität Marburg Thomas Riedl/University of Wuppertal Martin Koch/Philipps-Universität Marburg

We report the generation of a Fabry-Perot Bragg grating cavity enhanced four-wave mixing signal with a conversion efficiency of -37.7 dB experimentally. A thermal-tuning based dispersion compensation technique is also demonstrated for zero dispersion implementation.

Authors:Shengjie Xie/University of Maryland Yang Zhang/University of Maryland Yi-Wen Hu/University of Maryland Sylvain Veilleux/University of Maryland Mario Dagenais/University of Maryland

We observe experimentally multiphoton processes in active organic microresonators with different shapes: spheres, squares, octahedrons and rods. Pronounced whispering gallery modes with Q-factor up to 700 and coupling induced mode splitting are demonstrated.

Authors:Nikolai Mitetelo/M.V. Lomonosov Moscow State University Evgeniy Mamonov/M.V. Lomonosov Moscow State University Mikhail Popov/M.V. Lomonosov Moscow State University Dasari Venkatakrishnarao/University of Hyderabad Mari Annadhasan/University of Hyderabad Rajadurai Chandrasekar/University of Hyderabad Tatiana Murzina/M.V. Lomonosov Moscow State University

We fabricated periodically poled lithium niobate microdisks with a 2.4×10⁵ quality factor and a double-period domain pattern, where multiple nonlinear optical wavelength conversion processes were obtained, including SHG with a 5.1×10^-4 mW^-1 normalized conversion efficiency.

Authors:Li Zhang/NanKai University Zhen Hao/NanKai University Wenbo Mao/NanKai University Ang Gao/NanKai University Fang Bo/NanKai University Feng Gao/NanKai University GuoQuan Zhang/NanKai University Jingjun Xu/NanKai University

We report on the generation of third-order Riemann pulses in nonlinear optical fiber, obtained by tailoring the initial pulse in presence of high-order dispersion and Kerr nonlinearity. Analytical and numerical results show controllable pulse steepening and shock formation.

Authors:domenico bongiovanni/Nankai University Zhili Li/Nankai University Benjamin Wetzel/Université de Limoges Yi Hu/Nankai University Stefan Wabnitz/Sapienza University of Rome Roberto Morandotti/INRS University Zhigang Chen/San Francisco State University

We show that introducing tight spatio-temporal correlations into a wave-packet unveils remarkable dynamical refractive phenomena, such as group-velocity invariance with respect to the refractive index and group-delay cancellation while traversing stack of optical materials.

Authors:Murat Yessenov/University of Central Florida, CREOL Basanta Bhaduri/University of Central Florida, CREOL Ayman Abouraddy/University of Central Florida, CREOL

We firstly report the transient soliton dynamics from stationary to pulsation via dispersive Fourier transformation. It is found that the soliton pulsation occurs accompanied with the generation of sub-sideband.

Authors:Qianqian Huang/Shanghai University Zinan Huang/Shanghai University Zhichao Luo/South China Normal University Chengbo Mou/Shanghai University

We present experimental and numerical investigations on the spectral behaviour of a doubly resonant optical parametric oscillator. The third-order dispersion plays an important role for the pulsing and tuning dynamics.

Authors:Christian Dietrich/Institute of Quantum Optics Ihar Babushkin/Institute of Quantum Optics José Andrade/Institute of Quantum Optics Han Rao/Institute of Quantum Optics Ayhan Demircan/Institute of Quantum Optics Uwe Morgner/Institute of Quantum Optics

We experimentally demonstrate a Kerr frequency comb from a fiber Fabry-Pérot(FP) microresonator that is pump by a self-injection locked distributed feedback diode laser. The comb span exceeds 80 nm around 1550 nm, with beatnote linewidth of 370Hz.

Authors:Liyun Hao/Nanjing University Kunpeng Jia/Nanjing University Xiaohan Wang/Nanjing University Jian Guo/Nanjing University Zhenda Xie/Nanjing University

Multi-soliton formation is observed theoretically and experimentally in a femtosecond degenerate optical parametric oscillator (OPO) with positive residual third-order dispersion and relatively high pump power.

Authors:Chengxiao Ning/Huazhong Univ. of Science and Technology Zhaowei Zhang/Huazhong Univ. of Science and Technology

In this work, we investigate cascaded third harmonic generation in a dielectric metasurface by exploiting high quality factor Fano resonances obtained using broken symmetry unit cells.

Authors:Sylvain Gennaro/Sandia National Laboratories Sadhvikas Addamane/Sandia National Laboratories John Reno/Sandia National Laboratories Polina Vabishchevich/Sandia National Laboratories Michael Sinclair/Sandia National Laboratories Igal Brener/Sandia National Laboratories

By using multiple quasi-phase matching in the nonlinear photonic crystals (NPC) whose poling direction is perpendicular to the pump beam, we theoretically generated path-frequency hyperentangled photon pairs.

Authors:Guangqiang He/Shanghai Jiao Tong University Yizhou Ding/Shanghai Jiao Tong University Chaoxiang Xi/Shanghai Jiao Tong University

We design a miniature device enabling conveyance of weak localized states of light along an optical fiber employing a whispering gallery soliton micro-truck, which slows down for loading and unloading at designated stops.

Authors:Manuel Crespo Ballesteros/Aston Institute of Photonic Technologies Misha Sumetsky/Aston Institute of Photonic Technologies

We investigate the effects of the spectral uncertainty on the maximum differential group delay (DGD) for a finite-energy space-time wave-packet, showing the maximum DGD that can be obtained with respect to a reference pulse at c.

Authors:Murat Yessenov/University of Central Florida Lam Mach/University of Central Florida Basanta Bhaduri/University of Central Florida Layton Hall/University of Central Florida Davood Mardani/University of Central Florida Hasan Kondakci/University of Central Florida George Atia/University of Central Florida Miguel Alonso/University of Rochester Ayman Abouraddy/University of Central Florida

We investigate the frequency shift of an optical resonator per displacement of an atomically thin transition metal dichalcogenide suspended membrane. We show that giant optomechanical coefficients can be achieved near the excitonic resonance.

Authors:Mostafa Honari-Latifpour/City University of New York Vinod Menon/City University of New York Mohammad-Ali Miri/City University of New York

We present measurements of the nonlinear absorption and refraction of GaAs/AlGaAs quantum wells, and explore the fitness of this material system for nonlinear photonic devices.

Authors:Nicholas Cox/University of Central Florida Junxiong Wei/Université Libre de Bruxelles Simon-Pierre Gorza/Université Libre de Bruxelles David Hagan/University of Central Florida Eric Van Stryland/University of Central Florida

High order cascaded stimulated Brillouin scattering (SBS) is achieved when a microcavity is pumped with a 1550-nm tunable laser. The SBS can be tuned by a pump laser assisted with a heating laser, which provides a new approach to generate SBS in whispering gallery mode microresonators.

Authors:Zhenmin Chen/Tsinghua University H.Y. Fu/Tsinghua University Qian Li/Peking University

We present broadband third harmonic generation (THG) in monolayer MoS₂, showing strong enhancement (up to three orders of magnitude) with excitons. Our results pave the way to understand strong THG in MoS₂ for potential applications.

Authors:Yadong Wang/Aalto university Susobhan Das/Aalto university Xuerong Hu/Aalto university Yunyun Dai/Aalto university Xueyin Bai/Aalto university Zhipei Sun/Aalto university

Discrete cosine single-pixel imaging with binary illumination can fastly reconstruct a scene where area of the salient object can be detected rapidly and accurately even in the case of undersampling, utilizing deep learning model.

Authors:Li Yonghao/Shanghai Jiao Tong University Jianhong Shi/Shanghai Jiao Tong University Lei Sun/Shanghai Jiao Tong University xiaoyan wu/Shanghai Jiao Tong University Guihua Zeng/Shanghai Jiao Tong University

We design and experimentally demonstrate a system for mode-division multiplexing of accelerating plane wave beams, by combining light field control methods in line and frequency domains with reasonably arranged basic optical components.

Authors:Shuqing Lin/Sun Yat-Sen University Yuanhui Wen/Sun Yat-Sen University Yujie Chen/Sun Yat-Sen University Yanfeng Zhang/Sun Yat-Sen University Siyuan Yu/Sun Yat-Sen University

Propagation properties of light in optomechanical waveguides arrays are studied for the first time. This work provides a new platform for discrete optics and broaden the application of integrated optomechanics.

Authors:Xinbiao Xu/Huazhong Univ of Science and Technology Linhao Ren/Huazhong Univ of Science and Technology Lei Shi/Huazhong Univ of Science and Technology Xinliang Zhang/Huazhong Univ of Science and Technology

We explore power and bandwidth scaling for the generation of highly-temporally-confined THz transients from spintronic emitters, driven by the 250-fs and 20-fs pulses of a high-power 28-MHz Yb-based laser, spectrally centered at 1030 nm.

Authors:Alexander Weigel/Ludwig-Maximilians-Universität München Leon Helms/Ludwig-Maximilians-Universität München Theresa Buberl/Ludwig-Maximilians-Universität München Tim Vogel/Ruhr-Universität Bochum Christina Hofer/Ludwig-Maximilians-Universität München Kilian Fritsch/Helmut-Schmidt University Hamburg Natalia Martín Sabanés/Freie Universität Berlin Gerhard Jakob/Johannes Gutenberg University Mainz Mathias Kläui/Johannes Gutenberg University Mainz Oleg Pronin/Helmut-Schmidt University Hamburg Tobias Kampfrath/Freie Universität Berlin Clara Saraceno/Ruhr-Universität Bochum Ioachim Pupeza/Ludwig-Maximilians-Universität München

We describe a universal, reconfigurable waveguide coupler based on an alignment-tolerant design to access microresonators. The coupler can be made of any material so as to cover a wide range of refractive index for phase-matching.

Authors:Dae-Gon Kim/Korea Advanced Institute of Science and Technology Sangyoon Han/Korea Advanced Institute of Science and Technology Duk-Yong Choi/Australian National University Hansuek Lee/Korea Advanced Institute of Science and Technology

Integrated mode-selective on-chip couplers are reported using Si-nanoantennas-patterned Si₃N₄ waveguide. A chip-integrated twisted-light generator coupling free-space light into optical vortex carrying 1h OAM is numerically demonstrated, by engineering spatial modal-overlap & controlled mode mixing.

Authors:Yuan Meng/Tsinghua University Zhoutian Liu/Tsinghua University Zhenwei Xie/Shenzhen University Futai Hu/Tsinghua University Tiancheng Qi/Tsinghua University Qirong Xiao/Tsinghua University Hyunseok Kim/Massachusetts Institute of Technology Sang-Hoon Bae/Massachusetts Institute of Technology Xing Fu/Tsinghua University Mali Gong/Tsinghua University Xiaocong Yuan/Shenzhen University

We propose and experimentally demonstrate a unique phosphorene integrated photothermal modulator in telecommunication applications. The rise time and decay time are only 475 and 134 ns, and the 3 dB bandwidth is more than 2.5 MHz.

Authors:Zhao Cheng/Wuhan National Lab for Optoelectronics Rui Cao/Shenzhen University Jia Guo/Shenzhen University Yuhan Yao/Wuhan National Lab for Optoelectronics Kangkang Wei/Wuhan National Lab for Optoelectronics Shan Gao/Shenzhen University Yunzheng Wang/Shenzhen University Jianji Dong/Wuhan National Lab for Optoelectronics Han Zhang/Shenzhen University Xinliang Zhang/Wuhan National Lab for Optoelectronics

A tunable nanophotonic cavity with a wide tunability of ±10 nm is demonstrated using an optical nanofiber. The key point of the method is to combine the optical nanofiber with a chirped-period defect-mode grating.

Authors:Ramachandrarao Yalla/University of Hyderabad Kohzo Hakuta/University of Electro-Communications

We design a novel nanobeam cavity based on Bloch surface waves. Light is confined near the structure surface in a low-index material and in a volume V∼λ³, with a Q factor exceeding 5×10⁴.

Authors:Tommaso Perani/University of Pavia Daniele Aurelio/University of Pavia Marco Liscidini/University of Pavia

We propose and design a dual-layer grating coupler for dual-wavelength-band multiplexing on multilayer SiN-on-SOI photonic integrated platform. Its peak coupling efficiencies are -2.95 dB for O-band and -2.49 dB for C-band.

Authors:Lirong Cheng/Tsinghua University Simei Mao/Tsinghua University Xin Mu/Tsinghua University Sailong Wu/Tsinghua University H.Y. Fu/Tsinghua University

We demonstrate selective mode switching between substrate and superstrate Fano resonances in a metallic photonic crystal slab. A maximum experimental modulation depth of ~45% was achieved for the (1 0) substrate mode at 755 nm.

Authors:Timothy Palinski/NASA Glenn Research Center Brian Vyhnalek/NASA Glenn Research Center Gary Hunter/NASA Glenn Research Center Amogha Tadimety/Dartmouth College John Zhang/Dartmouth College

We demonstrate the fundamental transverse electric field (TE₀) and magnitude field (TM₀) mode hybridization in a thin film lithium niobate (LNOI) ridge waveguide. A microring resonator with a quality factor of 1.76 million was fabricated to observe the occurrence of the mode hybridization.

Authors:An Pan/Wuhan National Lab for Optoelectronics Cheng Zeng/Wuhan National Lab for Optoelectronics Jinsong Xia/Wuhan National Lab for Optoelectronics

We demonstrate an InAsSb-based mid-infrared detector via integrated photon-trapping hole array cavity structure, realizing 40% broadband absorption and 36% photocurrent enhancement in the wavelength range of 2 to 5 μm.

Authors:FEI SUO/Nanyang Technological University JINCHAO TONG/Nanyang Technological University HUA ZHANG/Nanyang Technological University

We have designed an apodized 2D slanted grating coupler that can multiplex four spatial fiber modes in two polarizations (fundamental + one higher-order mode in each polarization) into the SOI waveguides with high efficiency.

Authors:Xuan-Ming Guo/National Chiao-Tung University Yi-Jang Hsu/National Chiao-Tung University Chih-Chi Chang/National Chiao-Tung University Yinchieh Lai/National Chiao-Tung University

An optical pulse generator is demonstrated using the amplitude/phase hybrid modulation of an integrated laser-modulator transmitter followed by chirp compression. 6-GHz optical pulse with a width of 8.27 ps is realized.

Authors:WU ZHAO/Institute of Semiconductors, Chinese Academy of Sciences yaobin li/Institute of Semiconductors, Chinese Academy of Sciences Huan Wang/Institute of Semiconductors, Chinese Academy of Sciences Qiang Kan/Institute of Semiconductors, Chinese Academy of Sciences Dan Lu/Institute of Semiconductors, Chinese Academy of Sciences Lingjuan Zhao/Institute of Semiconductors, Chinese Academy of Sciences

We propose an on-chip compact silicon-based polarizer by sputtering multi-cadmium oxide layers on the silicon nanowire. The working bandwidth of higher than 340 nm is obtained in a short device length of 5 um.

Authors:Yin Xu/Jiangnan University Xin Hu/Hangzhou Dianzi University Yue Dong/Jiangnan University Bo Zhang/Jiangnan University Yi Ni/Jiangnan University

We present and demonstrate an exceptional coupling in extreme skin-depth waveguides for the extreme suppression of waveguide crosstalk. The anisotropic dielectric perturbation of metamaterial claddings causes such an exceptional coupling and results in an extremely long coupling length.

Authors:Md Borhan Mia/Texas Tech University Syed Ahmed/Texas Tech University Ishtiaque Ahmed/Texas Tech University Yun Lee/Purdue University Minghao Qi/Purdue University Sangsik Kim/Texas Tech University

We demonstrate fully CMOS-compatible anomalous dispersive SiN microring resonators with an intrinsic Q factor of 6.6 × 10⁵ based on reactive sputtering SiN, yielding in a 250 nm wide modulation-instability frequency comb.

Authors:Andreas Frigg/RMIT University Andreas Boes/RMIT University Guanghui Ren/RMIT University Thach Nguyen/RMIT University Duk-Yong Choi/Australian National University Silvio Gees/Evatec Ltd David Moss/Swinburne University of Technology Arnan Mitchell/RMIT University

We report on the repulsive and attractive interactions between indirect excitons in a system of separated coupled quantum wells.

Authors:Darius Choksy/University of California San Diego Leonid Butov/University of California San Diego Justin Norman/University of California, Santa Barbara Arthur Gossard/University of California, Santa Barbara

We demonstrate an electrically pumped light emitting device by integrating a monolayer MoTe₂ directly on doped Silicon to form a Si-MoTe₂ double heterostructure. An external quantum efficiency of ~0.65% was achieved.

Authors:Jianxing Zhang/Tsinghua University Yongzhuo Li/Tsinghua University Song Fu/Tsinghua University Jiabin Feng/Tsinghua University Cun-Zheng Ning/Tsinghua University

We present a detailed study of a parasitic effect connected to integrated Bragg gratings. An appreciable transmission drop is observed experimentally and originates from the backward cladding-mode coupling.

Authors:Jiahao Zhan/University of Maryland, College Park Mario Dagenais/University of Maryland, College Park

We observed the deterministic soliton switching dynamics based on intrinsically thermal cooling process in a strong polarization-coupling microcavity. The pump laser is polarized at the TM direction and the TE-polarized cavity soliton is generated.

Authors:Wenting Wang/University of California, Los Angeles XINGHE JIANG/University of California, Los Angeles Heng Zhou/University of California, Los Angeles Jinghui Yang/University of California, Los Angeles Mingbin Yu/Institute of Microelectronics, A*STAR Dim-Lee Kwong/Institute of Microelectronics, A*STAR Chee Wei Wong/University of California, Los Angeles

We designed an ultra-compact and low-loss T-junction via a reinforcement learning algorithm coupled with finite difference time domain (FDTD) simulations. Simulated insertion loss is < 1dB with a device footprint of 1.2 μm x 1.2 μm.

Authors:Sourangsu Banerji/University of Utah Alex Hamrick/University of Utah Apratim Majumder/University of Utah Rajesh Menon/University of Utah Berardi Rodriguez/University of Utah

Two parallel coupled racetrack microring resonators assisted with photonic nanofence have been proposed. Numerical simulations demonstrate the device’s capability of detecting and quantifying sizes of single-gold nanoparticles. The approach exhibits robustness in sensing and selectivity.

Authors:Saawan Kumar Bag/Indian Institute of Technology Kharagpur Sauradeep Kar/Indian Institute of Technology Kharagpur Rajat Sinha/Indian Institute of Technology Kharagpur Shubhanshi Sharma/Indian Institute of Technology Kharagpur Shailendra Varshney/Indian Institute of Technology Kharagpur

We demonstrate dispersion-engineered Si₃N₄ microresonators with mean Q values >10 million fabricated using standard subtractive techniques. Soliton microcombs at 100 GHz line spacing and mode-locked dark-pulse Kerr combs are reported.

Authors:Zhichao Ye/Chalmers University of Technology Krishna Twayana/Chalmers University of Technology Peter Andrekson/Chalmers University of Technology Victor Company/Chalmers University of Technology

In this paper, the break of rotational symmetry induced mode splitting is observed in subwavelength grating metamaterial ring resonator, which can potentially be exploited for ultrasensitive optical detection and sizing of nanoparticles and molecules.

Authors:Wanxin Li/Harbin Institute of Technology, Shenzhen Jiaxin Chen/Harbin Institute of Technology, Shenzhen Xiaochuan Xu/Harbin Institute of Technology, Shenzhen

We report the first demonstration of beta-phase gallium oxide optical waveguides on sapphire in the ultraviolet to near-infrared spectra. A low propagation loss of 3.7 dB/cm was obtained at the wavelength of 810 nm. © 2020 The Author(s)

Authors:Jingan Zhou/ARIZONA STATE UNIVERSITY Hong Chen/ARIZONA STATE UNIVERSITY Houqiang Fu/ARIZONA STATE UNIVERSITY Kai Fu/ARIZONA STATE UNIVERSITY Xuguang Deng/Suzhou Institute of Nano-Tech and Nano-Bionics xuanqi Huang/ARIZONA STATE UNIVERSITY Tsung-Han Yang/ARIZONA STATE UNIVERSITY Jossue Montes/ARIZONA STATE UNIVERSITY Chen Yang/ARIZONA STATE UNIVERSITY Xin Qi/ARIZONA STATE UNIVERSITY Baoshun Zhang/Suzhou Institute of Nano-Tech and Nano-Bionics Xiaodong Zhang/Suzhou Institute of Nano-Tech and Nano-Bionics Yuji Zhao/ARIZONA STATE UNIVERSITY

We present simulation and experimental results for an optical microring resonator in Z-cut thin-film lithium niobate with SiO₂ claddings and integrated tuning electrodes. Applying 0 to -80 V, we achieved a 1.38-nm continuous tuning range.

Authors:Yansong Yang/University of Illinois at Urbana-Champaign Meisam Bahadori/University of Illinois at Urbana-Champaign Ahmed E. Hassanien/University of Illinois at Urbana-Champaign Lynford L. Goddard/University of Illinois at Urbana-Champaign Songbin Gong/University of Illinois at Urbana-Champaign

A more than 500 mw input power and 2 uw second harmonic generation had been demonstrated in a Lithium tantalite (LT) microcavity. The Q-factor improving with high input power in the LT microdisk had been observed.

Authors:Yan Xiongshuo/Shanghai Jiao Tong University Yi'an Liu/Shanghai Jiao Tong University Bing Zhu/Shanghai Jiao Tong University Yuping Chen/Shanghai Jiao Tong University Xianfeng Chen/Shanghai Jiao Tong University

We demonstrate a 25 GHz single-soliton comb on a Si₃N₄ platform fabricated using a novel subtractive method. A long cavity is carefully designed to fit within the e-beam writing field while minimizing coupling to higher-order modes.

Authors:Zhichao Ye/Chalmers University of Technology Fuchuan Lei/Chalmers University of Technology Krishna Twayana/Chalmers University of Technology Marcello Girardi/Chalmers University of Technology Peter Andrekson/Chalmers University of Technology Victor Company/Chalmers University of Technology

We present a scheme to realize anti-parity-time (anti-PT) symmetry in an optical system by spatiotemporally modulating the imaginary part of permittivity. Direction-dependent bi-color lasing was achieved in an anti-PT symmetric micro-ring resonator.

Authors:Yao Duan/Pennsylvania State University Xingwang Zhang/Pennsylvania State University Yimin Ding/Pennsylvania State University xingjie ni/Pennsylvania State University

A tunable optical filter based on cascaded side-lobe-free waveguide gratings allows continuous tuning of 7 nm in bandwidth through on-chip heater and 83.2 pm/ ^o C in center wavelength through controlling environment temperature.

Authors:Tai-Chun Wang/National Sun Yat-sen University Tzu-Hsiang Yen/National Sun Yat-sen University Chia-J Yu/National Sun Yat-sen University Yen-Chieh Wang/National Sun Yat-sen University Yung-Jr Hung/National Sun Yat-sen University

A two-photon pumped high quality single-mode vertical cavity lasing was realized. The VCSEL exhibits a remarkable low threshold of ~421 μJ/cm², a high quality factor of ~1286 and a small divergence angle of ~0.5°.

Authors:Xiaohong Li/Huazhong University of Science and Technology Weiwei Liu/Huazhong University of Science and Technology Peixiang Lu/Huazhong University of Science and Technology

We show in simulation a 2-um graphene on silicon suspended electro-optic (E/O) modulator based on slot microring resonator working at critical coupling that shows dramatically increased speed while keeping big modulation depth

Authors:chao luan/Technical University of Denmark Yong Liu/Technical University of Denmark Yunhong Ding/Technical University of Denmark Hao Hu/Technical University of Denmark

We demonstrated a nonreciprocal device which is based on a silicon optomechanical microring resonator and a 3-dB directional coupler. The nonreciprocal transmission ratio of 22.235 dB with the input power of 251 μW is achieved.

Authors:Linhao Ren/Huazhong Univ of Science and Technology Xinbiao Xu/Huazhong Univ of Science and Technology Lei Shi/Huazhong Univ of Science and Technology Xinliang Zhang/Huazhong Univ of Science and Technology

A bidirectional scattering distribution function with rigorous coupled-wave analysis is used to simulate the far-field diffraction pattern from opal-based photonic crystals. Experimental studies with monochromatic light provide a perfect correspondence with the simulation.

Authors:Govind kumar/Indian Institute of Technology Kanpur Arpita Haldar/Indian Institute of Technology Kanpur R. Vijaya/Indian Institute of Technology Kanpur

A compact micro-ring resonator composed using low-loss advanced bends is reported. The effective radius of the ring is 2.5µm. The Q of 6200, finesse of 140, FSR of 35nm and ER of 15dB have been measured.

Authors:Jeong Hwan Song/IMEC Tangla Kongnyuy/IMEC Peter De Heyn/IMEC Sebastien Lardenois/IMEC Roelof Jansen/IMEC Xavier Rottenberg/IMEC

With comparison, experimental results show that the AWG with Rowland configuration in combination with constant period along the tangent line to its grating pole for arrayed waveguides has the best cross talk

Authors:zhenyu Li/Peking University Jun Zou/Nanyang Technological University HUIHUI ZHU/Nanyang Technological University Hui Zhang/Nanyang Technological University Hong Cai/Institute of Microelectronics, A*STAR zhenchuan yang/Peking University Yufeng Jin/Peking University yilong hao/Peking University Ai Qun Liu/Nanyang Technological University

Light generated through strongly pumped parametric down-conversion has extremely strong photon-number fluctuations and is therefore highly efficient for multiphoton effects. In addition, its spectral and spatial properties can be tailored to allow two-dimensional multiphoton spectroscopy.

Authors:Denis Kopylov/Max-Planck-Inst Physik des Lichts Kirill Spasibko/Max-Planck-Inst Physik des Lichts Paula Cutipa/Max-Planck-Inst Physik des Lichts Tatiana Murzina/M. V. Lomonosov Moscow State University Maria Chekhova/Max-Planck-Inst Physik des Lichts

The theoretical description of entangled photon absorption in complex multilevel systems undergoing dissipative dynamics is reviewed. The impact of quantum correlations on the efficiency of the absorption process and the excited state distributions is discussed.

Authors:Frank Schlawin/University of Oxford Andreas Buchleitner/Albert-Ludwigs University Freiburg Konstantin Dorfman/East China Normal University Shaul Mukamel/University of California

This talk overviews our recent work on two photon absorption and donor-acceptor energy transfer, including for the influence of photon entanglement on the results.

Authors:George Schatz/Northwestern University

We present a detailed study of two-photon absorption in some common fluorescent molecules with excitation by entangled photon pairs. Using fluorescence and transmittance measurements, we set an upper bound on the absorption cross sections.

Authors:Alexander Mikhailov/University of Colorado Boulder JILA Kristen Parzuchowski/University of Colorado Boulder JILA Michael Mazurek/University of Colorado Boulder JILA Thomas Gerrits/NIST Daniel Lum/NIST Martin Stevens/NIST Ralph Jimenez/University of Colorado Boulder JILA Ryan Willson/University of Colorado Boulder JILA Charles Camp/NIST

We demonstrate that by using squeezed light for two-photon absorption (TPA) of fluorescein biomarkers, a fluorescence enhancement of nearly 50 is achieved as compared to conventional TPA using coherent light.

Authors:Tian Li/Dept. of Bio.&Agri. Eng. Texas A&M Univ. Fu Li/Institute for Quantum Science and Engineering, Texas A&M Univ. Charles Altuzarra/Institute for Quantum Science and Engineering, Texas A&M Univ. Anton Classen/Dept. of Bio.&Agri. Eng. Texas A&M Univ. Girish Agarwal/Dept. of Bio.&Agri. Eng. Texas A&M Univ.

In this presentation, I will show how passive metasurfaces can start to impact Augmented and Virtual Reality applications. I will discuss the creation of high-efficiency, metasurface-based optical combiners for near-eye displays and eye tracking systems.

Authors:Mark Brongersma/Stanford University

Display technologies are soon limited by pixel density and power challenges. Closely optimizing display technologies to human vision through active optics and software algorithms allows the decoupling field-of-view with resolution. Steered foveated displays will enable a significant increase in effective resolution, while simultaneously decreasing pixel count.

Authors:Edward Tang/Avegant Corporation

In the race to the face for AR and volumetric experiences some key considerations for displays and video arises. In this session we look at 9 axes that are essential to address for this technology to be successful.

Authors:Ajit Ninan/Dolby Laboratories

Red, green, and blue InGaN/AlGaN nanowire micro-light-emitting diodes (μLEDs) grown on a silicon substrate by molecular beam epitaxy with diameters from 20 to 100μm present stable emissions in the visible spectra, promising for microLED displays.

Authors:HA QUOC THANG BUI/New Jersey Institute of Technology Ravi Teja Velpula/New Jersey Institute of Technology Barsha Jain/New Jersey Institute of Technology Hieu Nguyen/New Jersey Institute of Technology

We report experimental demonstrations of a phase-amplitude metasurface doublet capable of producing 2D artifact-free, full-color holographic images.

Authors:Xiaoyan Huang/Columbia University Sajan Shrestha/Columbia University Adam Overvig/Columbia University Nanfang Yu/Columbia University

Speeding up mid-infrared spectroscopy is an essential demand in molecular science. We demonstrate a broadband mid-infrared spectroscopy technique, called time-stretch infrared spectroscopy, spanning over 4.4-4.9 μm at a spectral acquisition rate of 80 MSpectra/s.

Authors:Akira Kawai/The University of Tokyo Tatsuo Dougakiuchi/Hamamatsu Photonics K.K. Venkata Ramaiah Badarla/The University of Tokyo Kazuki Hashimoto/The University of Tokyo Takayuki Imamura/The University of Tokyo Tadataka Edamura/Hamamatsu Photonics K.K. Takuro Ideguchi/The University of Tokyo

We develop a rapid-scan phase-controlled Fourier-transform spectroscopic technique to demonstrate broadband and high-resolution mid-infrared spectroscopy of gaseous and liquid phase molecules at a spectral acquisition rate of over 12 kHz.

Authors:Kazuki Hashimoto/The University of Tokyo Venkata Ramaiah Badarla/The University of Tokyo Takuro Ideguchi/The University of Tokyo

We characterize the impact of turbulence on optical pulse timing jitter over a uniform, near-ground path and compare the results with theory. Use of frequency combs enabled phase-continuous measurements down to 200-fs over multiple hours.

Authors:Emily Hannah/University of Colorado Boulder William Swann/National Institute of Standards and Technology Jennifer Ellis/National Institute of Standards and Technology Martha Bodine/National Institute of Standards and Technology Carter Mak/University of Colorado Boulder Nathan Kuczun/University of Colorado Boulder Nathan Newbury/National Institute of Standards and Technology Laura Sinclair/National Institute of Standards and Technology Andreas Muschinski/University of Colorado Boulder Gregory Rieker/University of Colorado Boulder

Dual-comb hyperspectral imaging is demonstrated using a high-framerate 128x128 pixel infrared detector array. 10 GHz wide gas-phase absorption features are well-resolved at 1 Hz-rate and extension to the entire 1-5 micron wavelength range is possible.

Authors:Thibault Voumard/Centre Suisse d'Electronique et de Microtechnique Thibault Wildi/Centre Suisse d'Electronique et de Microtechnique Victor Brasch/Centre Suisse d'Electronique et de Microtechnique Germán Vergara Ogando/New Infrared Technology Raul Gutierrez Alvarez/New Infrared Technology Tobias Herr/Centre Suisse d'Electronique et de Microtechnique

In this talk we provide an overview of recent work on emerging ultrafast laser approaches for remote sensing of elements and isotopes in solid samples, and preferentially enhancing or impeding chemical reactions in laser plasmas.

Authors:Vassilia Zorba/Lawrence Berkeley National Laboratory

We introduce a pulse burst mode form of dual-comb spectroscopy to enable time-resolved measurements of singular events. The time-resolved spectrum of iron following a single ablation shot of stainless steel is demonstrated.

Authors:Yu Zhang/University of Arizona Reagan Weeks/University of Arizona Caroline Lecaplain/University of Arizona Jeremy Yeak/Opticslah Sivanandan Harilal/Pacific Northwest National Laboratory Mark Phillips/University of Arizona R. Jones/University of Arizona

A time-resolved mid-infrared dual-comb spectrometer with a spectral bandwidth of ~300 cm^-1 and 6 GHz spectral resolution is used to monitor the dynamics in a CH₄ discharge plasma with 20 µs temporal resolution.

Authors:Muhammad Abbas/Radboud University Qing Pan/Radboud University Julien Mandon/Radboud University Frans J. Harren/Radboud University Amir Khodabakhsh/Radboud University

Using cold and ultracold rubidium atoms controlled with lasers intense enough to put the system into the Autler-Townes regime, fast, efficient, and broadband storage and manipulation of photonic signals is achieved. In demonstrating single-photon-level operation, signals are read out with exceptionally low-noise, which is inherent to this method. Finally, high efficiency and longer storage times are made possible by using Bose-condensed samples as the storage medium.

Authors:Erhan Saglamyurek/University of Alberta Anindya Rastogi/University of Alberta Taras Hrushevskyi/University of Alberta Benjamin Smith/University of Alberta Logan Cooke/University of Alberta Khabat Heshami/National Research Council Lindsay LeBlanc/University of Alberta

We created and experimentally verified two-mode entangled states of light, α|0,1>+βexp(iθ)|1,0>, by means of two phase-sensitive optical quantum memories. The release timing of each optical mode can be independently controlled for up to 400 ns.

Authors:Mamoru Endo/University of Tokyo Fumiya Okamoto/University of Tokyo Mikihisa Matsuyama/University of Tokyo Yuya Ishizuka/University of Tokyo Yosuke Hashimoto/University of Tokyo Rei Sakakibara/University of Tokyo Jun-ichi Yoshikawa/University of Tokyo Peter van Loock/Johannes Gutenberg Universität Mainz Akira Furusawa/University of Tokyo

Quantum error correction codes require large numbers of physical resources, in terms of photons and qubits. Here, we show how we can drastically reduce the number of photons required in quantum communication through quantum multiplexing

Authors:Nicolo Lo Piparo/National Institute of Informatics Michael Hanks/National Institute of Informatics Claude Gravel/National Institute of Informatics William Munro/NTT Basic Research Laboratories Kae Nemoto/National Institute of Informatics

We explore quantum routing on a future quantum internet and highlight the limitations current repeater architectures imposes on them. A number of quantum repeater architectures are not likely to be compatible with the quantum internet especially with constrained resources.

Authors:William Munro/NTT Basic Research Laboratories Kae Nemoto/National Institute of Photonics

We present an architecture for multiplexed quantum repeaters using local connectivity to improve fidelity in entanglement distribution. Simulations indicate our scheme achieves rates comparable to competing schemes, with fidelity improvements that increase with repeater size.

Authors:Yuan Lee/Research Laboratory of Electronics, Massachusetts Institute of Technology Eric Bersin/Research Laboratory of Electronics, Massachusetts Institute of Technology Axel Dahlberg/QuTech, Delft University of Technology Stephanie Wehner/QuTech, Delft University of Technology Dirk Englund/Research Laboratory of Electronics, Massachusetts Institute of Technology

In this talk, I will describe an architecture for fault-tolerant quantum computing that can be manufactured at large scales using silicon photonics.

Authors:Mercedes Gimeno-Segovia/PsiQuantum

We introduce silicon nanophotonic phased arrays with ultracompact and low-power resonator phase shifters for beam steering with an average applied power of 0.4 mW per phase shifter.

Authors:Hugo Larocque/Massachusetts Institute of Technology Leonardo Ranzani/Raytheon BBN Technologies James Leatham/Raytheon Space and Airborne Systems Jeffrey Tate/Raytheon Space and Airborne Systems Alex Niechayev/Raytheon Space and Airborne Systems Thomas Yengst/Raytheon Space and Airborne Systems Tin Komljenovic/Nexus Photonics Charley Fodran/Raytheon Space and Airborne Systems Duane Smith/Raytheon Space and Airborne Systems Mohammad Soltani/Raytheon BBN Technologies

We demonstrate waveguide-integrated silicon-germanium avalanche photodiodes. With a unity-gain responsivity of 0.95 A/W, gain of 16 and bandwidth of 33 GHz are achieved. 32 G-baud PAM-4 eyes are demonstrated without digital signal processing.

Authors:Jin Zhang/University of California San Diego Ana Pejkic/University of California San Diego Ping P. Kuo/University of California San Diego Radic Stojan/University of California San Diego

We demonstrate novel on-chip chalcogenide microresonators directly integrated on the silicon-on-insulator platform using an etchless fabrication method and thermal dewetting. A high Q greater than 4.6x10⁵ is measured at telecommunication wavelengths.

Authors:Philippe Jean/Centre d'Optique Photonique et Laser Alexandre Douaud/Centre d'Optique Photonique et Laser Sophie LaRochelle/Centre d'Optique Photonique et Laser Younès Messaddeq/Centre d'Optique Photonique et Laser Wei Shi/Centre d'Optique Photonique et Laser

Beyond 150-Gbit/s single-arm modulation of a waveguide-type silicon Mach-Zehnder interferometer (MZI) modulator operated at 1550 nm is achieved by using the GFDM data stream with optimizing K subcarriers and M time slots.

Authors:Shih-Chun Kao/Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan. Chih-Hsien Cheng/Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan. Huai-Yung Wang/Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan. Cheng-Ting Tsai/Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan. Patrick Chiang/Department of Microelectronics, Fudan University, Shanghai, China Borching Su/Graduate Institute of Communication Engineering, National Taiwan University, Taiwan, Taipei, Taiwan. Hao-Chung Kuo/Department of Photonics, National Chiao Tung University, Hsinchu, Taiwan. Gong-Ru Lin/Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan.

We demonstrated a compact broadband plasmonic-silicon electro-absorption modulator driven by epsilon-near-zero conductive oxide, covering the entire C-band from 1515nm to 1580nm wavelength. It achieved 3.5 GHz modulation bandwidth and 4.5 Gb/s data rate.

Authors:Bokun Zhou/Oregon State University Erwen Li/Oregon State University Yufei Bo/Oregon State University Wei-Che Hsu/Oregon State University Alan Wang/Oregon State University

We demonstrated for the first time graphene-assisted electro-optomechanical integration on a silicon-on-insulator platform. Various mechanical modes were effectively actuated with mechanical Q as high as ~1000 measured in air.

Authors:Xiang Xi/The Chinese University of Hong Kong Zefeng Chen/The Chinese University of Hong Kong Jian-Bin Xu/The Chinese University of Hong Kong Xiankai Sun/The Chinese University of Hong Kong

For the first time, we demonstrate 40-m range detection and 3D depth scan up to 20 m using a silicon-photonic optical phased array with integrated amplifiers, promising a highperformance solid-state light-detection and ranging (LiDAR) system.

Authors:Hyunil Byun/Samsung Advanced Institute of Technology Jisan Lee/Samsung Advanced Institute of Technology Bongyong Jang/Samsung Advanced Institute of Technology Changbum Lee/Samsung Advanced Institute of Technology Eunkyung Lee/Samsung Advanced Institute of Technology Inoh Hwang/Samsung Advanced Institute of Technology Changgyun Shin/Samsung Advanced Institute of Technology Dongjae Shin/Samsung Advanced Institute of Technology Dongshik Shim/Samsung Advanced Institute of Technology Tatsuhiro Otsuka/Samsung Advanced Institute of Technology Sungwoo Hwang/Samsung Advanced Institute of Technology Hyuck Choo/Samsung Advanced Institute of Technology Kyoungho Ha/Samsung Advanced Institute of Technology

Quantum fluids of light such as polariton or photon condensates can act as analogue Hamiltonian simulators for solving large-scale hard optimisation problems. I will discuss the requirements and recent progress in realising such systems.

Authors:Natalia Berloff/University of Cambridge

We study theoretically neural networks embedding a nonlinear wave as a computing reservoir. We demonstrate interpolation of large datasets and Boolean logic. We discuss the existence of a critical nonlinearity for learning.

Authors:Giulia Marcucci/ISC-CNR Dep. Physics Univ. Sapienza Davide Pierangeli/ISC-CNR Dep. Physics Univ. Sapienza Claudio Conti/ISC-CNR Dep. Physics Univ. Sapienza

We demonstrate theoretically and experimentally, for the first time to our knowledge, that the nonlinear response of a medium can be mapped directly onto a dynamical wave profile governed by a generalized nonlinear Schrödinger equation.

Authors:Pengbo Jia/The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University Zhili Li/The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University Yi Hu/The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University Zhigang Chen/The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University Jingjun Xu/The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University

We report the first experimental observation of four Fermi-Pasta-Ulam-Tsingou recurrences along an optical fiber thanks to an active compensation of the losses.

Authors:Guillaume Vanderhaegen/PhLAM Pascal Szriftgiser/PhLAM Alexandre Kudlinski/PhLAM Matteo Conforti/PhLAM Stefano Trillo/University of Ferrara Arnaud Mussot/PhLAM

Time- and frequency-resolved measurements of resonant nonlinear refraction of mid-IR radiation by CO and CO₂ gas reveal a fast optical nonlinearity that is dominated by power-broadening resulting in sign reversals of the nonlinear refractive index.

Authors:Jeremy Pigeon/Stony Brook University Dana Tovey/UCLA Sergei Tochitsky/UCLA Gerhardus Louwrens/UCLA Ilan Ben-Zvi/Stony Brook University Chan Joshi/UCLA Dmitry Martyshkin/University of Alabama at Birmingham Vladimir Fedorov/University of Alabama at Birmingham Krishna Karki/University of Alabama at Birmingham Sergey Mirov/University of Alabama at Birmingham

We present a novel approach to measure nonlinear interaction between selectively-excited modes of few-mode fibers. Selective excitation is achieved by end-facet patterning; spatiotemporal measurements are performed by raster-scanning a near-field probe coupled to high-speed detection.

Authors:Sai Kanth Dacha/University of Maryland Thomas Murphy/University of Maryland

We demonstrate that in nonlinear waveguide arrangements, the optical thermodynamic pressure results from the electrodynamic force exerted on the guiding interface and from an entropy growth term associated with an irreversible expansion.

Authors:Huizhong Ren/CREOL, University of Central Florida Fan Wu/CREOL, University of Central Florida Pawel Jung/CREOL, University of Central Florida Mercedeh Khajavikhan/University of Southern California Demetrios Christodoulides/CREOL, University of Central Florida

Optimization of laser-induced cavitation using amplified dynamic HOBBIT beams is demonstrated. The ring-profiled beams consist of coherent superpositions of asymmetric Bessel-Gauss beams containing orbital angular momentum with dynamic spatial and temporal control at λ=2.09 μm.

Authors:Keith Miller/Clemson University Yuan Li/Clemson University Eric Johnson/Clemson University

We present an experimental study on laser microfabrication of metal surfaces by using femtosecond, higher-order vector beams. The contribution of the longitudinal electric field in laser ablation depends on target material.

Authors:Masaki Sato/Tohoku University Yuichi Kozawa/Tohoku University Shunichi Sato/Tohoku University

We demonstrate, for the first time, the creation of a deflected spinning jet, made of high-viscosity donor material, so-called deflected ‘spin-jet’, by employing fractional optical vortex induced mass forward transfer technique.

Authors:Haruki Kawaguchi/Graduate School of Engineering Chiba University Ryosuke Nakamura/Graduate School of Engineering Chiba University Kei Umesato/Graduate School of Engineering Chiba University Katsuhiko Miyamoto/Molecular Chirality Research Center, Chiba University Takashige Omatsu/Molecular Chirality Research Center, Chiba University

We demonstrate that optical wavefront control can enhance the intensity of signal in filament-induced breakdown spectroscopy, and that this enhancement can be associated with the application of astigmatism.

Authors:Lauren Finney/University of Michigan Jinpu Lin/University of Michigan Patrick Skrodzki/University of Michigan Milos Burger/University of Michigan John Nees/Gerard Mourou Center for Ultrafast Optical Science Karl Krushelnick/University of Michigan Igor Jovanovic/University of Michigan

We examine the utility of beam shaping for femtosecond filament-induced breakdown spectroscopy at long range. Diffraction-resistant and self-healing Bessel and Airy beams offer the advantage of longitudinally extended working zones.

Authors:Milos Burger/University of Michigan pavel polynkin/University of Arizona Igor Jovanovic/University of Michigan

A novel approach to manipulate higher-order laser modes in Fabry-Perot microcavity was developed, where single-mode and multi-mode lasing could be fully configured by intracavity spherical confinement, chirality, as well as biochemical changes at the nanoscale.

Authors:Yifan Zhang/Nanyang Technological University Hamim Rivy/Nanyang Technological University Zhen Qiao/Nanyang Technological University Zhiyi Yuan/Nanyang Technological University YU-CHENG CHEN/Nanyang Technological University

We report on two-photon-absorption induced chiral surface structures of azo-polymers with high three-dimensional spatial resolution beyond diffraction limit and without undesired outer rings due to Airy patterns by irradiation of picosecond 1μm optical vortex pulses.

Authors:Ami Shiraishi/Chiba University KEIGO MASUDA/Chiba University Keisaku Yamane/Hokkaido University Kohei Toyoda/Chiba University Katsuhiko Miyamoto/Chiba University Takashige Omatsu/Chiba University

We experimentally demonstrate plasmonic Anderson localization in metallic nanogratings with short-range correlated disorder, which achieves various applications, such as in random nanolasing, solar energy, and strong light-matter interactions, etc.

Authors:Ruwen Peng/Nanjing University Wen-Bo Shi/Nanjing University Ying-Ying Zhu/Nanjing University Mu Wang/Nanjing University

Subwavelength light confinement leads to strong radiation pressure interactions with multiple nanomechanical resonators. This allows optically-controlled phonon transport with broken time-reversal symmetry. We demonstrate the emergent quantum Hall physics in Hermitian and non-Hermitian nano-optomechanical lattices.

Authors:Ewold Verhagen/AMOLF