Multi-carrier Tb/s silicon photonic coherent receiver  

作　　者：Zhen WANG Xingfeng LI Jingchi LI Jian SHEN Yong ZHANG Yikai SU 

机构地区：[1]State Key Lab of Advanced Optical Communication Systems and Networks,Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Science China(Information Sciences)》2024年第1期280-287,共8页中国科学（信息科学）（英文版）

基　　金：supported by National Key Research and Development Program of China (Grant No.2019YFB1803602);National Natural Science Foundation of China (Grant Nos.61835008,61860206001,61975115)。

摘　　要：We propose a silicon polarization-diversity coherent receiver for wavelength-multiplexing transmission without using the large-footprint arrayed waveguide grating(AWG).We have integrated our proposed coherent receiver on the silicon-on-insulator(SOI) platform for high-capacity transmission.In the proposed coherent receiver,high-frequency photocurrent signals from other wavelengths are suppressed by electrical low-pass filters.Moreover,the signal-signal beat interference(SSBI) generated from each wavelength is eliminated by the balanced detection.These two features lend to the proposed coherent receiver being free of the mm-scale AWG.We have demonstrated our proposed coherent receiver to detect a 1.12-Tb/s wavelength-division-multiplexed and polarization-division-multiplexed 16-ary quadrature amplitude modulation(PDM-16-QAM) signal.The compact footprint of the silicon chip promises small-form-factor receivers for future ultra-high-capacity coherent communication systems that require a high integration level and low fabrication cost.

关 键 词：silicon photonics optical receivers coherent communication wavelength-division-multiplexing(WDM) polarization-division-multiplexing(PDM) 

分 类 号：TN929.1[电子电信—通信与信息系统]