MZI wavelength interleaving filter based on double microring structure  

基于双微环结构的MZI型波长交错滤波器

作　　者：YANG Ziwei ZHENG Yufu YE Jia SHI Haoqiang WEI Xiaoming 杨紫薇;郑玉甫;叶佳;石昊强;魏晓明(兰州交通大学电子与信息工程学院,甘肃兰州730070)

机构地区：[1]School of Electronics and Information Engineering, Lanzhou JiaoTong University, Lanzhou 730070, China

出　　处：《Journal of Measurement Science and Instrumentation》2021年第1期93-97,共5页测试科学与仪器（英文版）

基　　金：National Natural Science Foundation of China(No.61461024);Foundation of a Hundred Youth Talent Training Program of Lanzhou Jiaotong University(No.1520220232)。

摘　　要：To improve the output characteristics of all-fiber Mach-Zehnder interferometer(MZI)-interleaver,a dual microring-assisted MZI interleaver is designed.According to its structure,the output expression of the device is derived from the signal flow diagram.After simulation analysis,the optimal structural parameters during the transmission process are obtained.In addition,the coupling coefficient and transmission loss of the coupler are analyzed.The results show that the improved interleaver output line wave is closer to the square wave,and its 25 dB cutoff band bandwidth and 0.5 dB passband bandwidth are significantly improved,with the values of 41.2 GHz and 18.9 GHz,respectively.The device has a certain resistantability to deviation,and the transmission loss has less influence on the extinction characteristics of the filter.

关 键 词：optical fiber communication Mach-Zehnder interferometer(MZI) INTERLEAVER dual microring resonator 

分 类 号：TN9[电子电信—信息与通信工程]