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A Bit on Silicon Photonics

By Dominic Siriani | Posted: 11 March 2013

A holy grail of photonics and electronics is the integration of silicon CMOS technology with electro-optical devices. In general, this is challenging because mature electro-optic components are made in compound semiconductors, such as GaAs and InP. Development of hybrid integration, where compound semiconductor photonics are combined with silicon electronics using material bonding techniques, is being pursued currently and is a promising approach. Another more direct method, however, is to try to make photonic devices from silicon directly. This is an appealing idea, since silicon is relatively cheap and the microelectronics industry has built up a large technology infrastructure around it.

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