Article | REF: E2480 V1

Silicon photonics- Devices for fiber optical network

Authors: Christophe KOPP, Stéphane BERNABÉ, Charles BAUDOT, Guang-Hua DUAN

Publication date: May 10, 2018, Review date: August 24, 2021

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4. Laser integration

Integrating laser sources on a silicon PIC has long been a technological stumbling block. Silicon is a material with an indirect bandgap, so it cannot emit light efficiently. However, components such as laser sources and amplifiers are essential for complete emitters. Among laser sources, several families are required, depending on the communication network in question. They include Fabry-Perot lasers, Bragg grating lasers, distributed Bragg grating (DFB) lasers and tunable [E 7 005] lasers.

Today, there are three different approaches...

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Laser integration