On-chip optical matrix-vector multiplier based on mode division multiplexing  

作　　者：Qiaolv Ling Penghui Dong Yayan Chu Xiaowen Dong Jingye Chen Daoxin Dai Yaocheng Shi 

机构地区：[1]State Key Laboratory for Modern Optical Instrumentation,Centre for Optical and Electromagnetic Research,College of Optical Science and Engineering,In-ternational Research Center for Advanced Photonics,Zhejiang University,Zijin-gang Campus,Hangzhou 310058,China [2]Ningbo Research Institute,Zhejiang University,Ningbo 315100,China [3]Huawei Technologies Co.,Ltd,Shenzhen 518000,China

出　　处：《Chip》2023年第4期63-70,共8页芯片（英文）

基　　金：supported by National Major Research and Devel-opment Program(2021YFB2801703);National Natural Science Foundation of China(62135011&62105286);“Pioneer”and“Leading Goose”R&D Program of Zhejiang(2022C01103);the Fundamental Research Funds for the Central Universities.

摘　　要：Published online:14 August 2023 A matrix-vector multiplication(MVM)optical signal processor based on mode division multiplexing(MDM)was proposed and demon-strated in the current work,which is composed of a mode multiplexer,a multimode beam splitter,a mode demultiplexer,a modulator ar-ray and combiners.In addition,the characteristics of MDM obviate the need for multiple wavelengths and therefore multiple laser light sources are unneeded,which greatly reduces the complexity and cost.A 4×4 MDM-MVM was realized on a standard silicon-on-insulator(SOI)platform.Combined with the off-chip light source and photode-tectors(PDs),4-level modulation has been demonstrated,and each level of the output signal could represent 2 bits of information.

关 键 词：Photonic computing Silicon photonics Matrix vector multiplier Mode division multiplexing 

分 类 号：TN929.1[电子电信—通信与信息系统]