测试科学与仪器2021，Vol.12Issue(1)：93-97,5.DOI:10.3969/j.issn.1674-8042.2021.01.012
基于双微环结构的MZ I型波长交错滤波器
MZI wavelength interleaving filter based on double microring structure
摘要
Abstract
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
光纤通信/马赫-曾德尔干涉仪/交叉复用器/双微环谐振腔Key words
optical fiber communication/Mach-Zehnder interferometer (MZI)/interleaver/dual microring resonator引用本文复制引用
杨紫薇,郑玉甫,叶佳,石昊强,魏晓明..基于双微环结构的MZ I型波长交错滤波器[J].测试科学与仪器,2021,12(1):93-97,5.基金项目
National Natural Science Foundation of China(No.61461024) （No.61461024）
Foundation of a Hundred Youth Talent Training Program of Lanzhou Jiaotong University(No.1520220232) （No.1520220232）
