2022 Schedule

Foundations of Nonlinear Optics

Laser Beam Analysis, Propagation, and Spatial Shaping Techniques

LiDAR and remote sensing: An application-oriented introduction

Virtual: Nonlinear Processes in Microresonators 2

1. 10:00 - 10:15

   (UTC - 07:00)
   SS1C.1

   Dynamical Structures and Collective Dynamics of Soliton Crystals in Kerr Microresonator

   Presenter: Futai Hu, University of California, Los Angeles, United States

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   We experimentally observed spatiotemporal dynamics of soliton crystals in a Kerr microresonator. We numerically reproduce our observations and further confirm them using an ultrafast temporal imaging system.Authors: Futai Hu, University of California, Los Angeles / Abhinav Kumar, University of California, Los Angeles / Wenting Wang, University of California, Los Angeles / Mali Gong, Tsinghua University / Chee Wei Wong, University of California, Los Angeles
2. 10:15 - 10:30

   (UTC - 07:00)
   SS1C.2

   Efficient Pump Energy Utilization With Photonic-Crystal Microcombs

   Presenter: Su-Peng Yu, National Inst of Standards & Technology, United States

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   We develop composite photonic crystal resonators to enhance Kerr comb energy efficiency. Photonic resonators spontaneously generate dark-soliton microcomb, where accompanying build-up cavity conserves pump laser energy to enable fundamentally high efficiency and low operating power.Authors: Su-Peng Yu, National Inst of Standards & Technology / Jizhao Zang, National Inst of Standards & Technology / Erwan Lucas, National Inst of Standards & Technology / David Carlson, National Inst of Standards & Technology / Travis Briles, National Inst of Standards & Technology / Scott Papp, National Inst of Standards & Technology
3. 10:30 - 10:45

   (UTC - 07:00)
   SS1C.3

   Kerr Soliton Dual-Microcomb Generation in a Synchronously Driven Microresonator

   Presenter: Yiqing Xu, The Dodd-Walls Centre for Photonic and Quantum Technologies, New Zealand

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   We demonstrate a Kerr soliton dual-microcomb generation by synchronously driving two orthogonal polarization modes of a single microresonator. We also apply the generated dual-microcomb to perform a proof-of-concept spectroscopic measurement.Authors: Yiqing Xu, The Dodd-Walls Centre for Photonic and Quantum Technologies / Miro Erkintalo, The Dodd-Walls Centre for Photonic and Quantum Technologies / Yi Lin, Zhejiang University / Stephane Coen, The Dodd-Walls Centre for Photonic and Quantum Technologies / Huilian Ma, Zhejiang University / Stuart Murdoch, The Dodd-Walls Centre for Photonic and Quantum Technologies
4. 10:45 - 11:00

   (UTC - 07:00)
   SS1C.4

   Phase Noise Reduction of a Soliton Microcomb With an Auxiliary Mode

   Presenter: Fuchuan Lei, Chalmers University of Technology, Sweden

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   We demonstrate a neat method to reduce the phase noise of a soliton microcomb caused by thermal fluctuation. It is realized by rendering the pump to simultaneously excite a slightly red-detuned auxiliary mode.Authors: Fuchuan Lei, Chalmers University of Technology / Zhichao Ye, Chalmers University of Technology / Victor Torres-Company, Chalmers University of Technology
5. 11:00 - 11:15

   (UTC - 07:00)
   SS1C.5

   Zero-Dispersion Soliton in Fiber Based Fabry-Pérot Microresonators With Anomalous Dispersion

   Presenter: Zeyu Xiao, Shanghai Jiao Tong University, China

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   We have theoretically and experimentally demonstrated the existence of zero-dispersion solitons in a high Q fiber F-P microresonator with weak anomalous dispersion. This work reveals the nonlinear dynamics of such zero-dispersion solitons in Kerr microresonators.Authors: Zeyu Xiao, Shanghai Jiao Tong University / Tieying Li, Shanghai Jiao Tong University / Minglu Cai, Shanghai Jiao Tong University / Hongyi Zhang, Shanghai Jiao Tong University / Yi Huang, Shanghai Jiao Tong University / Kan Wu, Shanghai Jiao Tong University / Jianping Chen, Shanghai Jiao Tong University

Virtual: Light Sources and Metasurfaces

1. 10:00 - 10:15

   (UTC - 07:00)
   SS1B.1

   Electrically Driven Bound-State-in-the-Continuum Laser

   Presenter: Yufei Wang, Institute of Semiconductors, CAS, China

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   We report on the first demonstration of electrically driven bound state in the continuum (BIC) laser. The laser is based on two types of BIC modes in a photonic crystal metacavity lasing at room temperature.Authors: Yufei Wang, Institute of Semiconductors, CAS / Guixin Li, Southern University of Science and Technology / Yuri Kivshar, Australian National University / Wanhua Zheng, Institute of Semiconductors, CAS
2. 10:15 - 10:30

   (UTC - 07:00)
   SS1B.2

   (Withdrawn) 3D Printed and Spiral Lithographically Patterned Erbium-Doped Polymer Micro-Waveguide Amplifiers

   Presenter: hongwei gao, Singapore University of Technology and Design, Singapore

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   A spiral erbium-doped polymer micro-waveguide amplifiers fabricated using lithographic patterning and a 3D printed polymer waveguide amplifiers are demonstrated. A maximum gain of 8 dB and gain bandwidth of 60 nm is achieved.Authors: hongwei gao, Singapore University of Technology and Design / HUIMIN Li, Singapore University of Technology and Design / George Feng Rong Chen, Singapore University of Technology and Design / PENG Xing, Singapore University of Technology and Design / MEI CHEE TAN, Singapore University of Technology and Design / Dawn Tan, Singapore University of Technology and Design
3. 10:30 - 10:45

   (UTC - 07:00)
   SS1B.3

   Initial Results of Tristimulus Colorimetric Metasurface: Mimicking the Human Eye

   Presenter: Christopher Munley, University of Washington, United States

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   Using local and nonlocal optimization, we design and fabricate a metasurface to mimic the color response and focusing functions of the human eye. Colors are separated but the spectra are shifted and broadened. Qualitative match between the theory and experiment have been measured.Authors: Christopher Munley, University of Washington / Wenchao Ma, Massachusetts Institute of Technology / Johannes Froech, University of Washington / Elyas Bayati, University of Washington / Quentin Tanguy, University of Washington / Raphael Pestourie, Massachusetts Institute of Technology / Zin Lin, Massachusetts Institute of Technology / Steven Johnson, Massachusetts Institute of Technology / Arka Majumdar, University of Washington
4. 10:45 - 11:00

   (UTC - 07:00)
   SS1B.4

   Beamforming via Wrapped Transverse Propagation for Visible Integrated Photonics

   Presenter: Grisha Spektor, University of Colorado, United States

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   Controlling visible-laser emission with integrated photonics affects quantum technologies and challenges nanophotonic design and fabrication. Here, we demonstrate a pathway to millimeter-scale beams with versatile polarization, using wrapped lateral propagation via total internal reflection and metasurface optics.Authors: Grisha Spektor, University of Colorado / Travis Briles, National Institute of Standards and Technology / Yan Jin, University of Colorado / David Carlson, National Institute of Standards and Technology / Scott Papp, University of Colorado
5. 11:00 - 11:15

   (UTC - 07:00)
   SS1B.5

   Photonic Microwave Synthesizer in Microresonator-Filtered Fiber Lasers

   Presenter: Mingming Nie, University of Colorado Boulder, United States

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   We demonstrate a photonic microwave synthesizer based on microresonator-filtered fiber lasers with two co-lasing laser frequencies. Low phase noise is achieved at 10.088 GHz due to common-mode noise suppression, comparable to the state-of-art.Authors: Mingming Nie, University of Colorado Boulder / Shu-Wei Huang, University of Colorado Boulder
6. 11:15 - 11:30

   (UTC - 07:00)
   SS1B.6

   Nanobeam Photonic Crystal Cavities Engineered for Minimized Quantum dot Spectral Broadening

   Presenter: Junyeob Song, National Institute of Standards and Technology, United States

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   Nanobeam photonic crystal cavities are engineered to provide large Purcell radiative rate enhancements for single quantum dot single-photon emitters while minimizing spectral broadening induced by etched sidewalls.Authors: Junyeob Song, National Institute of Standards and Technology / Emerson de Melo, University of São Paulo / Ashish Chanana, National Institute of Standards and Technology / Biswarup Guha, National Institute of Standards and Technology / Cori Haws, University of Glasgow / Luca Sapienza, University of Glasgow / Thiago Alegre, University of Campinas / Jin-Dong Song, Korea Institute of Science and Technology / Kartik Srinivasan, National Institute of Standards and Technology / Marcelo Davanco, National Institute of Standards and Technology
7. 11:30 - 11:45

   (UTC - 07:00)
   SS1B.7

   Waveguide-Coupled Narrow-Linewidth Photoluminescence From a Single Carbon Nanotube

   Presenter: Daiki Yamanshita, RIKEN, Japan

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   We demonstrate narrow-linewidth and low-background light emission from an individual single-walled carbon nanotube integrated onto a photonic crystal nanobeam cavity and a waveguide operating in the telecom wavelength regime.Authors: Daiki Yamanshita, RIKEN / Hidenori Machiya, RIKEN / Keigo Otsuka, RIKEN / Akihiro Ishii, RIKEN / Yuichiro Kato, RIKEN
8. 11:45 - 12:00

   (UTC - 07:00)
   SS1B.8

   All-Silicon Metalens for Long Wavelength Infrared Imaging

   Presenter: Luocheng Huang, University of Washington, United States

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   We made meta-optics in the long-wave infrared (LWIR) regime and demonstrate imaging with a 2 cm aperture f/1 all-silicon metalens under ambient thermal emission. We showed that even with the strongly chromatic nature of the metalenses, we can perform ambient light imaging, thanks to the lack of wavelength discrimination in the sensor.Authors: Luocheng Huang, University of Washington / Zachary Coppens, CFD Research Corporation / Kent Hallman, BlueHalo Corporation / Zheyi Han, University of Washington / Karl Bohringer, University of Washington / Neset Akozbek, BlueHalo Corporation / Ashok Raman, CFD Research Corporation / Arka Majumdar, University of Washington

Virtual: Photonic Integration I

1. 10:00 - 10:15

   (UTC - 07:00)
   SS1D.1

   Light-Controlled Switching in Electro-Optical Memristors

   Presenter: Kevin Portner, ETH Zurich, Switzerland

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   We demonstrate a new concept in an electro-optical memristor where a global light stimulus induces non-volatile conductance changes. The optical signal acts as a third, independent stimulation channel, similar to neuromodulators in three-factor learning rules.Authors: Kevin Portner, ETH Zurich / Christoph Weilenmann, ETH Zurich / Alexander Maeder, ETH Zurich / Till Zellweger, ETH Zurich / Ping Ma, ETH Zurich / Mathieu Luisier, ETH Zurich / Alexandros Emboras, ETH Zurich
2. 10:15 - 10:30

   (UTC - 07:00)
   SS1D.2

   Cross-Gain Modulation-Based Reservoir Computing Using Membrane SOAs on Si-MZI

   Presenter: Takuma Tsurugaya, NTT Device Technology Labs, Japan

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   We solve the Santa-Fe prediction task with reservoir computing utilizing cross-gain modulation in membrane semiconductor optical amplifiers (SOAs). SOAs are heterogeneously integrated on each arm of Si-based Mach-Zehnder interferometer to spatially separate the input/output ports.Authors: Takuma Tsurugaya, NTT Device Technology Labs / Tatsurou Hiraki, NTT Device Technology Labs / Takuma Aihara, NTT Device Technology Labs / Mitsumasa Nakajima, NTT Device Technology Labs / Koji Takeda, NTT Device Technology Labs / Toru Segawa, NTT Device Technology Labs / Shinji Matsuo, NTT Device Technology Labs
3. 10:30 - 10:45

   (UTC - 07:00)
   SS1D.3

   Silicon Optical Phased Array With 180-Degree Field of View for Solid-State 2D Beam Steering

   Presenter: Yong Liu, Technical University of Denmark, Denmark

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   We experimentally demonstrated a silicon optical phased array based on a slab grating and waveguide array with a half-wavelength pitch. 2D beam steering with 180° field of view and low side lobe level (<-19 dB within ±40°) has been achieved.Authors: Yong Liu, Technical University of Denmark / Hao Hu, Technical University of Denmark
4. 10:45 - 11:00

   (UTC - 07:00)
   SS1D.4

   Broadband and Low Residual Amplitude Modulation Phase Modulator Arrays for Optical Beamsteering Applications

   Presenter: Michael Nickerson, University of California, Santa Barbara, United States

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   Low loss phase modulator arrays with 1x16 splitters are demonstrated on a gallium arsenide platform that is suitable for monolithic integration with gain. Measured modulator Vπ.L efficiency is 0.7 V.cm at 1030 nm.Authors: Michael Nickerson, University of California, Santa Barbara / Bowen Song, University of California, Santa Barbara / Lei Wang, University of California, Santa Barbara / Paul Verrinder, University of California, Santa Barbara / Jonathan Klamkin, University of California, Santa Barbara / Jim Brookhyser, MKS Instruments / Gregory Erwin, MKS Instruments / Jan Kleinert, MKS Instruments
5. 11:00 - 11:15

   (UTC - 07:00)
   SS1D.5

   Monolithic FMCW Lidar Chip With Integrated Transceiver Array and Lens-Assisted Beam Steering (LABS)

   Presenter: Kan Wu, Shanghai Jiao Tong University, China

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   A frequency-modulated continuous-wave Lidar chip with integrated transceiver array and lens-assisted beam steering is demonstrated. It enables beam emitting, steering and receiving on a single Lidar chip with simultaneous distance and velocity detection.Authors: Chao Li, Shanghai Jiao Tong University / Kan Wu, Shanghai Jiao Tong University / Xianyi Cao, Shanghai Jiao Tong University / Tianyi Li, Shanghai Jiao Tong University / Jianping Chen, Shanghai Jiao Tong University

Virtual: Imaging and Dual Comb Metrology

1. 10:00 - 10:15

   (UTC - 07:00)
   SS1A.1

   Two-Photon Dual-Comb LiDAR

   Presenter: Hollie Wright, Heriot-Watt University, United Kingdom

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   We demonstrate dual-comb LiDAR with two-photon detection at 1555 nm, achieving sub-100 nm precision in 3 seconds. The non-interferometric pulse-like signals enable a timer-based approach that reduces the data burden of dual-comb ranging by >10,000.Authors: Hollie Wright, Heriot-Watt University / Jinghua Sun, Dongguan University of Technology / Nick Weston, Renishaw PLC / David McKendrick, Renishaw PLC / Derryck Reid, Heriot-Watt University
2. 10:15 - 10:30

   (UTC - 07:00)
   SS1A.2

   Dynamic Measurements at up to 130-kHz Sampling Rates Using Ti:Sapphire Dual-Comb Distance Metrology

   Presenter: Toby Mitchell, Heriot Watt University, United Kingdom

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   By using band-limited detection we demonstrate Ti:sapphire dual-comb distance metrology at >100 kHz, providing few-nm precision in 100 ms with a non-ambiguity range of 29 cm. Exemplar dynamic measurements of audio waveforms are presented.Authors: Toby Mitchell, Heriot Watt University / Jinghua Sun, Dongguan University of Technology / Derryck Reid, Heriot Watt University
3. 10:30 - 10:45

   (UTC - 07:00)
   SS1A.3

   Dual-Comb Digital Holography at Fast Sampling Rate

   Presenter: Lauren Guillemot, Max Planck Institute für Quantenoptik, Germany

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   Near-infrared and visible frequency combs, combined with fast CMOS cameras and multi-heterodyne read-out, open up new opportunities for lens-less imaging, three-dimensional metrology and scan-free wavefront reconstruction.Authors: Lauren Guillemot, Max Planck Institute für Quantenoptik / Edoardo Vicentini, Max Planck Institute für Quantenoptik / Theodor Haensch, Max Planck Institute für Quantenoptik / Nathalie Picqué, Max Planck Institute für Quantenoptik / Lucas Deniel, Max Planck Institute für Quantenoptik
4. 10:45 - 11:00

   (UTC - 07:00)
   SS1A.4

   3D Position Nanometrology of a Coronavirus-Like Nanoparticle With Topologically Structured Light

   Presenter: Yu Wang, University of Southampton, United Kingdom

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   Scattering of topologically structured light is highly sensitive to the position of a scattering object. We show that position of a coronavirus-like 100 nm polystyrene sphere can be measured with the deeply subwavelength accuracy.Authors: Yu Wang, University of Southampton / Eng Aik Chan, Nanyang Technological University / Carolina Rendón-Barraza, Nanyang Technological University / Kevin MacDonald, University of Southampton / Eric Plum, University of Southampton / Jun-Yu Ou, University of Southampton / Nikolay Zheludev, University of Southampton
5. 11:00 - 11:15

   (UTC - 07:00)
   SS1A.5

   High-Resolution Hyperspectral Imaging Including Amplitude and Phase Spectra Using Chirped Optical Frequency Comb

   Presenter: Takashi Kato, The Univ. of Electro-Communications, Japan

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   We developed high-resolution hyperspectral imaging using a chirped optical frequency comb. Precise all-optical processing with the comb enables simultaneous amplitude and phase of ultrashort pulse. A 100-nm spectral range with a 1.8-nm resolution was demonstrated.Authors: Takashi Kato, The Univ. of Electro-Communications / Tamaki Morito, The Univ. of Electro-Communications / Yasuhisa Nekoshima, The Univ. of Electro-Communications / Kaoru Minoshima, The Univ. of Electro-Communications
6. 11:15 - 11:30

   (UTC - 07:00)
   SS1A.6

   (Withdrawn) Optical Cavity Acoustic Pressure Standard

   Presenter: Akobuije Chijioke, National Institute of Standards & Technology, United States

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   We present ongoing work to perform low-uncertainty sound measurement using the pressure-driven oscillation of the refractive index of air inside a combined acoustical and optical cavity.Authors: Akobuije Chijioke, National Institute of Standards & Technology / Benjamin Reschovsky, National Institute of Standards & Technology / Steven Fick, National Institute of Standards & Technology / David Long, National Institute of Standards & Technology / Richard Allen, National Institute of Standards & Technology / Randall Wagner, National Institute of Standards & Technology
7. 11:30 - 11:45

   (UTC - 07:00)
   SS1A.7

   Dual-Comb Spectroscopy for Astronomical Spectrograph Calibration

   Presenter: Thibault Voumard, DESY, Germany

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   Precise and accurate calibration of astronomical spectrograph is key in exoplanet searches and cosmological studies. Dual-comb spectroscopy of a Fabry-Perot cavity represents a new approach to absolute calibration avoiding the need for high-repetition rate lasers.Authors: Thibault Voumard, DESY / Markus Ludwig, DESY / Thibault Wildi, DESY / Bruno Chazelas, Geneva Observatory / François Wildi, Geneva Observatory / François Bouchy, Geneva Observatory / Francesco Pepe, Geneva Observatory / Tobias Herr, DESY
8. 11:45 - 12:00

   (UTC - 07:00)
   SS1A.8

   Quantitative Measurement of Absolute Displacement of Surface Acoustic Wave With ~26 pm Axial Resolution
   Using Time-Division Dual-Comb Interferometry

   Presenter: Ayaka Iwasaki, Faculty of Science and Technology, Keio Univ., Japan

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   We demonstrate a quantitative evaluation of absolute displacement of surface acoustic wave by the time-division dual-comb interferometry with the Sagnac geometry. Due to an ultrahigh stability of the Sagnac geometry, achieved resolution is ~26 pm.Authors: Ayaka Iwasaki, Faculty of Science and Technology, Keio Univ. / Daichi Nishikawa, Faculty of Science and Technology, Keio Univ. / Shoma Tateno, Faculty of Science and Technology, Keio Univ. / Makoto Okano, Faculty of Science and Technology, Keio Univ. / Kazuto Yamanoi, Faculty of Science and Technology, Keio Univ. / Yukio Nozaki, Faculty of Science and Technology, Keio Univ. / Shinichi Watanabe, Faculty of Science and Technology, Keio Univ.

Super-resolution imaging: Basic Nanoscopy principles and its applications to biology, chemistry and materials science

Introduction to Quantum Optics

Topological photonics

Virtual: THz Generation and Applications II

1. 14:00 - 14:15

   (UTC - 07:00)
   SS2C.1

   Terahertz Topological Meta-Devices for on-Chip Photonics

   Presenter: Ilya Shadrivov, Australian National University, Australia

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   We design and demonstrate experimentally the on-chip integration and miniaturization of topological devices for the terahertz technologies. Our devices are based on valley-Hall photonic structures employed for integrated components of on-chip THz systems.Authors: Quanlong Yang, Australian National University / Dongyang Wang, The Hong Kong University of Science and Technology / Sergey Kruk, Oak Ridge National Laboratory / Mingkai Liu, Australian National University / Ivan Kravchenko, Oak Ridge National Laboratory / Yuri Kivshar, Australian National University / Ilya Shadrivov, Australian National University
2. 14:15 - 14:30

   (UTC - 07:00)
   SS2C.2

   THz Generation With Photoconductive Emitters With a Low-Noise GHz Repetition Rate Laser

   Presenter: Felix Fobbe, Ruhr Universitat Bochum, Germany

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   We demonstrate THz generation with a low noise GHz repetition rate laser with state-of-the-art photoconductive emitters. We measure a maximum dynamic range of 73 dB and a bandwidth of more than 3 THz.Authors: Felix Fobbe, Ruhr Universitat Bochum / Tim Vogel, Ruhr Universitat Bochum / Frank Wulf, Cycle Lasers / Robert Kohlhaas, Fraunhofer Institute for Telecommunications, HHI / Björn Globisch, Fraunhofer Institute for Telecommunications, HHI / Marcel van Delden, Ruhr Universitat Bochum / Florian Emaury, Menhir Photonics / Benjamin Rudin, Menhir Photonics / Thomas Musch, Ruhr Universitat Bochum / Clara Saraceno, Ruhr Universitat Bochum
3. 14:30 - 14:45

   (UTC - 07:00)
   SS2C.3

   Ultrafast Nanoscale Photocurrent Control and Terahertz Emission in Hybrid Nanoplasmonic-2D Material Systems

   Presenter: Jacob Pettine, Los Alamos National Laboratory, United States

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   Ultrafast optical control over nanoscale charge currents is increasingly important for emerging integrated optoelectronics and other applications. Here, we introduce versatile new hybrid nanoplasmonic-graphene sources of tailored picosecond photocurrents and demonstrate bias-free, continuously-polarization-rotatable terahertz emission.Authors: Jacob Pettine, Los Alamos National Laboratory / Teng Shi, Los Alamos National Laboratory / Yue Huang, Los Alamos National Laboratory / Kevin Kwock, Los Alamos National Laboratory / Nicholas Sirica, Los Alamos National Laboratory / Rohit Prasankumar, Los Alamos National Laboratory / Hou-Tong Chen, Los Alamos National Laboratory
4. 14:45 - 15:00

   (UTC - 07:00)
   SS2C.4

   5.6 mW Average Power THz Source With 8 THz Bandwidth at 540 kHz Repetition Rate Based on Organic Crystal BNA

   Presenter: Samira Mansourzadeh Ashkani, Photonics and Ultrafast Laser Science ,Ruhr-University Bochum, Germany

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   We demonstrate an ultra-broadband, high dynamic range THz source using organic crystal BNA, excited with a high-power, ultrafast Yb laser operating at 540 kHz repetition rate, reaching a record-high THz average power of 5.6 mW.Authors: Samira Mansourzadeh Ashkani, Photonics and Ultrafast Laser Science ,Ruhr-University Bochum / Tim Vogel, Photonics and Ultrafast Laser Science ,Ruhr-University Bochum / Alan Omar, Photonics and Ultrafast Laser Science ,Ruhr-University Bochum / Mostafa Shalaby, Swiss Terahertz Research-Zurich, Technopark / Mirko Cinchetti, Department of Physics, TU Dortmund University / Clara Saraceno, Photonics and Ultrafast Laser Science ,Ruhr-University Bochum
5. 15:00 - 15:15

   (UTC - 07:00)
   SS2C.5

   Active Spintronic-Metasurface Terahertz Emitters With Tunable Chirality

   Presenter: Shunjia Wang, Department of Physics,Fudan University, China

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   In this work, we propose a novel spintronic-metasurface terahertz emitter for the generation and manipulation of coherent broadband terahertz waves. The ellipticity of the chiral terahertz waves can reach >0.75 over the entire 1-5 THz broadband and the polarization state can be easily controlled by an external magnetic field.Authors: Shunjia Wang, Department of Physics,Fudan University / Changqin Liu, Department of Physics,Fudan University / Sheng Zhang, Department of Physics,Fudan University / Qingnan Cai, Department of Physics,Fudan University / Peng Wang, Department of Physics,Fudan University / Chuanshan Tian, Department of Physics,Fudan University / Lei Zhou, Department of Physics,Fudan University / Yizheng Wu, Department of Physics,Fudan University / Zhensheng Tao, Department of Physics,Fudan University
6. 15:15 - 15:30

   (UTC - 07:00)
   SS2C.6

   Passive Terahertz Non-Line-of-Sight Imaging: Conventional and Plenoptic

   Presenter: Erich Grossman, National Inst of Standards & Technology, United States

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   High quality passive imaging of humans is demonstrated from terahertz radiation scattered off common building materials. 2D scanning produces images of hidden non-line-of-sight objects while plenoptic scanning adds range information.Authors: Erich Grossman, National Inst of Standards & Technology / Takahiro Sasaki, University of Minnesota / James Leger, University of Minnesota
7. 15:30 - 15:45

   (UTC - 07:00)
   SS2C.7

   High-Power Excitation of Spintronic THz Emitter in the Back-Cooled Reflection Geometry

   Presenter: Tim Vogel, Ruhr-University Bochum, Germany

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   We present THz generation in a back-cooled spintronic THz emitter in reflection geometry, excited with a high-average power Yb-laser providing up to 18.5 W at 400 kHz repetition rate. This allows us to increase the THz power.Authors: Tim Vogel, Ruhr-University Bochum / Alan Omar, Ruhr-University Bochum / Samira Mansourzadeh Ashkani, Ruhr-University Bochum / Frank Wulf, Ruhr-University Bochum / Natalia Sabanés, Free University of Berlin / Melanie Müller, Fritz Haber Institute of the Max Planck Society / Tom Seifert, Free University of Berlin / Alexander Weigel, Ludwig-Maximilians-University Munich / Gerhard Jakob, Johannes Gutenberg-University / Mathias Kläui, Johannes Gutenberg-University / Ioachim Pupeza, Ludwig-Maximilians-University Munich / Tobias Kampfrath, Free University of Berlin / Clara Saraceno, Ruhr-University Bochum
8. 15:45 - 16:00

   (UTC - 07:00)
   SS2C.8

   1030 nm Photoconductive Receiver Excited at >20 mW of THz Average Power

   Presenter: Tim Vogel, Ruhr-University Bochum, Germany

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   We present an investigation of an ErAs:InAlGaAs photoconductive antenna receiver optimized for 1030 nm probe pulses at 24 mW THz power and show a dynamic range of 92 dB in 10 s measurement time. The saturation behavior under high THz average power is studied as well.Authors: Tim Vogel, Ruhr-University Bochum / Samira Mansourzadeh Ashkani, Ruhr-University Bochum / Romina Schulz, Technical University Darmstadt / Uttam Nandi, Technical University Darmstadt / Sascha Preu, Technical University Darmstadt / Clara Saraceno, Ruhr-University Bochum

Virtual: Photonic Neural Networks and Related Components

1. 14:00 - 14:30

   (UTC - 07:00)
   SS2B.1

   On-Chip Training Silicon Photonic Circuits to Perform Digital and Analog Computing

   Presenter: Guangwei Cong, AIST (Natl Inst of Adv Indust Sci&Tech), Japan

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   Invited

   We review our recent results on on-chip training silicon photonic circuits to perform digital (single and combinational Boolean logics) and analog (classification tasks in machine learning) computing.Authors: Guangwei Cong, AIST (Natl Inst of Adv Indust Sci&Tech) / Noritsugu Yamamoto, AIST (Natl Inst of Adv Indust Sci&Tech) / Yuriko Maegami, AIST (Natl Inst of Adv Indust Sci&Tech) / Morifumi Ohno, AIST (Natl Inst of Adv Indust Sci&Tech) / Shota Kita, NTT Basic Research labs. / Shu Namiki, AIST / Koji Yamada, AIST (Natl Inst of Adv Indust Sci&Tech)
2. 14:30 - 14:45

   (UTC - 07:00)
   SS2B.2

   Time Series Prediction and Classification Using Silicon Photonic Neuron With a Self-Connection

   Presenter: Thomas Ferreira de Lima, NEC Laboratories America, United States

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   We experimentally demonstrated real-time operation of a photonic neuron with a self-connection, a pre-requisite for integrated recurrent neural networks (RNNs). After studying two applications we propose a photonics-assisted platform for time series prediction and classification.Authors: Hsuan-Tung Peng, Princeton University / Thomas Ferreira de Lima, NEC Laboratories America / Eric Blow, Princeton University / Simon Bilodeau, Princeton University / Aashu Jha, Princeton University / Chaoran Huang, Princeton University / Bhavin Shastri, Queen’s University / Paul Prucnal, Princeton University
3. 14:45 - 15:00

   (UTC - 07:00)
   SS2B.3

   Compact, Broadband CWDM Demultiplexer Using Energy Constrained Inverse Design

   Presenter: Guowu Zhang, McGill University, Canada

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   A three-channel (de)multiplexer with 50 nm channel spacing and 6.2 μm × 5.4 μm footprint is designed with an energy constrained inverse design method, providing low loss, acceptable crosstalk, and 47 nm 3-dB bandwidth experimentally.Authors: Guowu Zhang, McGill University / Dan-Xia Xu, National Research Council Canada / Yuri Grinberg, National Research Council Canada / odile liboiron-ladouceur, McGill University
4. 15:00 - 15:15

   (UTC - 07:00)
   SS2B.4

   High Quality Factor Slow Light Modes and Localized Defect Modes in a Microgear Photonic Crystal Ring

   Presenter: Xiyuan Lu, National Inst of Standards & Technology, United States

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   We demonstrate silicon nitride photonic crystal microrings supporting both high quality factor (Q≈1×106) slow-light modes (slowing ratio ≈10) and high-Q (≈6×105) localized defect modes (volume <5(λ/n)3). These microcavities are created through a gear-like modulation of the microring inner sidewall.Authors: Xiyuan Lu, National Inst of Standards & Technology / Andrew McClung, University of Massachusetts Amherst, / Kartik Srinivasan, National Inst of Standards & Technology
5. 15:15 - 15:30

   (UTC - 07:00)
   SS2B.5

   Geometric Four-Wave Mixing Phase-Matching in Photonic Nanoresonators

   Presenter: Su-Peng Yu, National Inst of Standards & Technology, United States

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   We present nanoresonators in which a shared photonic defect provides two distinct guiding mechanisms. Their drastically different dispersion profiles enable unconventional, near-arbitrary phase-matching for four-wave mixing, advantageous for wideband wavelength access.Authors: Su-Peng Yu, National Inst of Standards & Technology / Kiyoul Yang, Stanford University / Joshua Yang, Stanford University / Jennifer Black, National Inst of Standards & Technology / David Carlson, National Inst of Standards & Technology / Travis Briles, National Inst of Standards & Technology / Melissa Guidry, Stanford University / Daniil Lukin, Stanford University / Jelena Vuckovic, Stanford University / Scott Papp, National Inst of Standards & Technology
6. 15:30 - 15:45

   (UTC - 07:00)
   SS2B.6

   Thermally Tunable Silicon Topological Photonic Add-Drop Filter

   Presenter: Lu Sun, Shanghai Jiao Tong University, China

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   By exploiting the robust transport of light along the edges formed by two types of valley photonic crystals, we experimentally demonstrated a thermally tunable silicon topological photonic add-drop filter in the telecom band.Authors: Lu Sun, Shanghai Jiao Tong University / Hongwei Wang, Shanghai Jiao Tong University / Yong Zhang, Shanghai Jiao Tong University / Yikai Su, Shanghai Jiao Tong University
7. 15:45 - 16:00

   (UTC - 07:00)
   SS2B.7

   Circulating Optical Delay Line Based on a Multi-Mode Converter

   Presenter: Ningning Wang, Shanghai Jiao Tong University, China

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   We propose a novel optical delay line utilizing multi-mode conversion to achieve three time longer delay. The three-mode recursive converter is realized via inverse design.Authors: Ningning Wang, Shanghai Jiao Tong University / Xing Yang, Shanghai Jiao Tong University / Di Wu, Shanghai Jiao Tong University / Liangjun Lu, Shanghai Jiao Tong University / Linjie Zhou, Shanghai Jiao Tong University / Jianping Chen, Shanghai Jiao Tong University

Virtual: Ultrafast Spectroscopy & Nonlinear Processes

1. 14:00 - 14:15

   (UTC - 07:00)
   SS2A.1

   High-Spectral-Resolution Stimulated Raman Spectroscopy With Amplified fs Pulse Bursts

   Presenter: Hongtao Hu, TU Wien, Austria

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   We propose a new approach to a species-selective SRS gas sensing combining the advantages of strong signal levels and the ease of optical frequency conversion, obtainable with broadband fs pulses, with the high frequency resolution characteristic of narrowband sub-ns pulses. Spectra are mapped by electronic phase control of the amplified burst.Authors: Hongtao Hu, TU Wien / Xinhua Xie, Paul Scherrer Institute / Tobias Flöry, TU Wien / Vinzenz Stummer, TU Wien / Audrius Pugzlys, TU Wien / Markus Kitzler, TU Wien / Alexei Zheltikov, Texas A&M University / Andrius Baltuška, TU Wien
2. 14:15 - 14:30

   (UTC - 07:00)
   SS2A.2

   On-Chip Carrier-Envelope Phase Scanner

   Presenter: Beatrix Fehér, Wigner Research Centre for Physics, Hungary

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   We performed an on-air measurement of CEP spatial distribution of focused few-cycle laser oscillator beam. The on-chip probe exploits the CEP sensitivity of electric currents in dielectrics exposed to the strong field.Authors: Vaclav Hanus, Wigner Research Centre for Physics / Beatrix Fehér, Wigner Research Centre for Physics / Zsuzsanna Pápa, Wigner Research Centre for Physics / Judit Budai, ELI-ALPs Research Institute / Pallabi Paul, Institute of Applied Physics / Adriana Szeghalmi, Institute of Applied Physics / Péter Dombi, Wigner Research Centre for Physics
3. 14:30 - 15:00

   (UTC - 07:00)
   SS2A.3

   Novel Applications of Optical Frequency Comb Spectroscopy

   Presenter: Jun Ye, University of Colorado at Boulder JILA, United States

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   Invited

   I will present some latest development of applications based on frequency combs ranging from mid-IR to XUV.Authors: Jun Ye, University of Colorado at Boulder JILA
4. 15:00 - 15:15

   (UTC - 07:00)
   SS2A.4

   Extreme UV Spectral Broadening in Hollow Core Fiber

   Presenter: Yujiao Jiang, Deutsches Elektronen-Synchrotron DESY, Germany

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   We demonstrate extreme spectral broadening of third harmonic pulses from a 35-fs Ti:Sapphire laser using cross-phase modulation with the fundamental in Neon filled hollow core fibers. The potential for high energy sub-2-fs UV-pulses is explored.Authors: Yujiao Jiang, Deutsches Elektronen-Synchrotron DESY / Igor Tyulnev, The Barcelona Institute of Science and Technology / Fabian Scheiba, Deutsches Elektronen-Synchrotron DESY / Zhiyi Wei, Institute of Physics, Chinese Academy of Sciences / Franz Kärtner, Deutsches Elektronen-Synchrotron DESY / Giulio Rossi, Deutsches Elektronen-Synchrotron DESY
5. 15:15 - 15:30

   (UTC - 07:00)
   SS2A.5

   Broadly Tunable (993-1110 nm) and Ultra-Short Pulse (sub-40-fs) Yb:YLF Lasers

   Presenter: Umit Demirbas, Center for Free-Electron Laser Science, Germany

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   We present a diode-pumped Yb:YLF oscillator with record cw (993-1110 nm) and fs (1019-1047 nm) tuning ranges, with up to 4 W power and 78% slope efficiency, generating pulses as short as 39-fs when mode-locked.Authors: Umit Demirbas, Center for Free-Electron Laser Science / Jelto Thesinga, Center for Free-Electron Laser Science / Martin Kellert, Center for Free-Electron Laser Science / Simon Reuter, Center for Free-Electron Laser Science / Mikhail Pergament, Center for Free-Electron Laser Science / Franz Kaertner, Center for Free-Electron Laser Science
6. 15:30 - 15:45

   (UTC - 07:00)
   SS2A.6

   1.6-GHz, 3.3-W Kerr-Lens Mode-Locked Yb:KGW Oscillator Pumped by a Multimode Laser Diode

   Presenter: Li Zheng, Xidian University, China

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   We demonstrate a high-power high-repetition-rate Kerr-lens mode-locked oscillator pumped by a laser diode for the first time. 269-fs pulses at the repetition rate of 1.6 GHz with up to 3.3-W average power are obtained.Authors: Li Zheng, Xidian University / Yuehang Chen, Xidian University / Wenlong Tian, Xidian University / Yang Yu, Xidian University / Geyang Wang, Xidian University / BaiChuan Bai, Xidian University / Dacheng Zhang, Xidian University / Jiangfeng Zhu, Xidian University / Zhiyi Wei, Xidian University
7. 15:45 - 16:00

   (UTC - 07:00)
   SS2A.7

   Electron Pulse Compression With Optical Beat Note

   Presenter: Zhexin Zhao, Stanford University, United States

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   We propose to use optical beat notes to compress electron pulses, which is applicable to electron pulses with a wide range of initial duration.Authors: Zhexin Zhao, Stanford University / Kenneth Leedle, Stanford University / Dylan Black, Stanford University / Olav Solgaard, Stanford University / Robert Byer, Stanford University / Shanhui Fan, Stanford University

Virtual: Power Scaling in Semiconductor Lasers

1. 14:00 - 14:15

   (UTC - 07:00)
   SS2D.1

   Analysis of the Non-Injecting Mirror Concept for Feedback-Resistant High-Power Laser Diodes With a Multiphysics Model

   Presenter: Martin Adams, Fraunhofer ILT, Germany

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   A multiphysics model of a high-power external cavity laser diode is used to evaluate the impact of an electrically unpumped section near the front facet on its COD threshold when operated with misaligned optical feedback.Authors: Martin Adams, Fraunhofer ILT / Carlo Holly, RWTH Aachen / Simon Rauch, Trumpf Photonic Components / Martin Traub, Fraunhofer ILT
2. 14:15 - 14:30

   (UTC - 07:00)
   SS2D.2

   Monolithically Integrated Fourier Injected REsonator (FIRE) for Coherent Beam Combining

   Presenter: Lance Sweatt, Clemson University, United States

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   An on-chip FIRE resonator, consisting of an angled laser array monolithically integrated with a slab waveguide propagation region, is experimentally demonstrated for coherent beam combining with the increased supermode discrimination and reduced edge losses.Authors: Lance Sweatt, Clemson University / Siwei Zeng, Clemson University / Xiaolei Zhao, Clemson University / Christopher Corcoran, Corcoran Engineering, Inc / Lin Zhu, Clemson University
3. 14:30 - 14:45

   (UTC - 07:00)
   SS2D.3

   High Power CW Laser for Co-Packaged Optics

   Presenter: Wenjia Zhou, Lumentum Operations LLC, United States

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   A high-power, Continuous-Wave (CW) laser prototype for External Laser Sources (ELSs) used in Co-Packaged Optics (CPO) applications is demonstrated at over 500mW ex-fiber, more than 10% efficiency.Authors: Wenjia Zhou, Lumentum Operations LLC / Yan Zhu, Lumentum Operations LLC / Jeff Wang, Lumentum Operations LLC / Michael Moewe, Lumentum Operations LLC / Ruichao Zhu, Lumentum Operations LLC / Wei Zhao, Lumentum Operations LLC / Victor Rossin, Lumentum Operations LLC / Hongyu Liu, Lumentum Operations LLC / Jinsong Wang, Lumentum Operations LLC / Ting Zhu, Lumentum Operations LLC / Prasad Yalamanchili, Lumentum Operations LLC / Thang Pham, Facebook Inc / Ruby Chen, Facebook Inc / Vincent Zeng, Facebook Inc / James Stewart, Facebook Inc
4. 14:45 - 15:30

   (UTC - 07:00)
   SS2D.4

   Advances in AlGaN-Based UV Lasers

   Presenter: M Kneissl, Technische Universität Berlin, Germany

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   Tutorial

   This tutorial will cover recent progress in the development of AlGaN-based ultraviolet laser diodes, including advanced heterostructure designs, challenges in epitaxial growth, novel fabrication technologies, and progress on surface emitting UV lasers.Authors: M Kneissl, Technische Universität Berlin
5. 15:30 - 15:45

   (UTC - 07:00)
   SS2D.5

   Multipass in-Well Pumped Semiconductor Disk Laser for Sodium Guide Stars

   Presenter: Mingyang Zhang, University of New Mexico, United States

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   We describe a novel membrane-external-cavity surface-emitting laser geometry employing multi-pass in-well pumping. Narrow linewidth output power of 6.2 W at 589 nm is achieved targeting sodium guide star applications.Authors: Mingyang Zhang, University of New Mexico / Alexander Albrecht, University of New Mexico / Garrett Cole, Thorlabs Crystalline Solutions / Catherine Nguyen, Thorlabs Crystalline Solutions / David Follman, Thorlabs Crystalline Solutions / Mansoor Sheik-Bahae, University of New Mexico
6. 15:45 - 16:15

   (UTC - 07:00)
   SS2D.6

   Over 1 Watt THz QCLs With High Doping Concentration and Variable Al Composition in Active Structure

   Presenter: Tsung-Tse Lin, RIKEN, Japan

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   Invited

   A 1.31 W peak power and 52 mW average power THz QCL is presented by variable Al composition active structure with high doping concentration based on NEGF method design. Device has thick growth active layers and large mesa size with the consideration of heat dissipation.Authors: Tsung-Tse Lin, RIKEN