Experimental demonstration of a flexible-grid 1×(2×3)mode-and wavelength-selective switch using silicon microring resonators and counter-tapered couplers  

作　　者：孔德军 鲁昊 汪鹏君 符强 戴世勋 陈伟伟 王栎沣 张波豪 马凌霄 李军 戴庭舸 杨建义 Dejun Kong;Hao Lu;Pengjun Wang;Qiang Fu;Shixun Dai;Weiwei Chen;Yuefeng Wang;Bohao Zhang;Lingxiao Ma;Jun Li;Tingge Dai;Jianyi Yang(Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,China;College of Electrical and Electronic Engineering,Wenzhou University,Wenzhou 325035,China;College of Science and Technology,Ningbo University,Ningbo 315300,China;Laboratory of Infrared Materials and Devices,The Research Institute of Advanced Technologies,Ningbo University,Ningbo 315211,China;Department of Information Science and Electronics Engineering and Cyrus Tang Center for Sensor Materials and Applications,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,China [2]College of Electrical and Electronic Engineering,Wenzhou University,Wenzhou 325035,China [3]College of Science and Technology,Ningbo University,Ningbo 315300,China [4]Laboratory of Infrared Materials and Devices,The Research Institute of Advanced Technologies,Ningbo University,Ningbo 315211,China [5]Department of Information Science and Electronics Engineering and Cyrus Tang Center for Sensor Materials and Applications,Zhejiang University,Hangzhou 310027,China

出　　处：《Chinese Optics Letters》2024年第1期52-58,共7页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62275134,62234008,61875098,and 61874078);the Zhejiang Provincial Natural Science Foundation(Nos.LY20F050003 and LY20F050001);the Natural Science Foundation of Ningbo(Nos.2022J099 and 202003N4159);the Youth Science and Technology Innovation Leading Talent Project of Ningbo(No.2023QL003);the K.C.Wong Magna Fund at Ningbo University。

摘　　要：A flexible-grid 1×(2×3)mode-and wavelength-selective switch which comprises counter-tapered couplers and silicon microring resonators has been proposed,optimized,and demonstrated experimentally in this work.By carefully thermally tuning phase shifters and silicon microring resonators,mode and wavelength signals can be independently and flexibly conveyed to any one of the output ports,and different bandwidths can be generated as desired.The particle swarm optimization algorithm and finite difference time-domain method are employed to optimize structural parameters of the twomode(de)multiplexer and crossing waveguide.The bandwidth-tunable wavelength-selective optical router composed of12 microring resonators is studied by taking advantage of the transfer matrix method.Measurement results show that,for the fabricated module,cross talk less than-10.18 dB,an extinction ratio larger than 17.41 d B,an in-band ripple lower than0.79 dB,and a 3-dB bandwidth changing from 0.38 to 1.05 nm are obtained,as the wavelength-channel spacing is 0.40 nm.The corresponding response time is measured to be 13.64μs.

关 键 词：integrated optics optical waveguide mode-and wavelength-selective switch 

分 类 号：TN25[电子电信—物理电子学]