Silicon-photonics-based coherent optical subassembly (COSA) for ultra-compact coherent transceiver

Kiyofumi Kikuchi,Ken Tsuzuki,Shin Kamei,Shogo Yamanaka, Shuichiro Asakawa,Toshihiro Itoh,Yusuke Nasu,Kotaro Takeda,Kentaro Honda,Yuriko Kawamura, Makoto Jizodo,Masayuki Takahashi,Mitsuo Usui,Hiroyasu Mawatari,Takashi Saida

2017 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)（2017）

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Abstract

We actualized a silicon photonics (SiPh)-based coherent optical subassembly (COSA) with a compact and low-height package for the next-generation transceiver form factors. We integrated optical functions required for transmitting and receiving digital coherent optical signals into a single SiPh chip. The COSA is applicable to 100-Gbps dual-polarization quadrature phase shift keying and 200Gbps dual polarization 16-quadrature amplitude modulation transmissions.

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Key words

Digital coherent,Modulator,Package,coherent receiver,Modulator driver,Transimpedance amplifier

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