Non-blocking 2×2 switching unit based on nested silicon microring resonators with high extinction ratios and low crosstalks  

作　　者：Jiayang Wu Xinhong Jiang Ting Pan Pan Cao Liang Zhang Xiaofeng Hu Yikai Su 

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

出　　处：《Chinese Science Bulletin》2014年第22期2702-2708,共7页

基　　金：supported in part by the National Natural Science Foundation of China (61125504 and 61235007);in part by MoE Grant (20110073110012);in part by Minhang Talent Program

摘　　要：In this paper,we propose and demonstrate a2 9 2 optical Benes switching unit based on two nested silicon microring resonators(MRRs)monolithically integrated on a silicon-on-insulator(SOI)wafer.High extinction ratios(ERs)of about 44.7/38.0 dB and low crosstalk values of about-37.5/-45.2 dB at cross/bar states are obtained with the fabricated device.The operation principle is theoretically studied and the switching function is verified by system demonstration experiments with 10 and12.5 Gb/s non-return-to-zero(NRZ)signals.The switching speed on the order of gigahertz based on free carrier effect in silicon is also experimentally demonstrated.In this paper, we propose and demonstrate a 2 × 2 optical Benes switching unit based on two nested silicon microring resonators （MRRs） monolithically integrated on a silicononinsulator （SOI） wafer. High extinction ratios （ERs） of about 44.7/38.0 dB and low crosstalk values of about -37.5/-45.2 dB at cross/bar states are obtained with the fabricated device. The operation principle is theoretically studied and the switching function is verified by system demonstration experiments with 10 and 12.5 Gb/s nonreturntozero （NRZ） signals. The switching speed on the order of gigahertz based on free carrier effect in silicon is also experimentally demonstrated.

关 键 词：切换功能 消光比 谐振器 微环 嵌套 非阻塞 串音 器具 

分 类 号：TN629.1[电子电信—电路与系统]