摘要
针对传统的马赫-曾德尔干涉仪滤波器余弦状输出光谱不能满足光通信的滤波需求,将2个微环谐振器与马赫-曾德尔干涉仪相耦合,采用热光性能优良的SOI材料作为器件原材料,设计出一种新型的滤波器结构。利用微环谐振理论、信号流程图理论和梅森公式推导出滤波器的传递函数,并对其输出端口的强度进行模拟分析。仿真结果表明:当微环的周长L与马赫-曾德尔干涉仪上下臂的臂长差Δd满足L 1=2L 2=Δd时,滤波器的输出光谱为顶部平坦、边沿陡峭型的输出谱。与普通马赫-曾德尔干涉仪滤波器相比,提出的滤波器的滤波性能有了明显改善。
The cosine output spectrum of the traditional mach-zehnder interferometer filter cannot meet the filtering requirements in optical communication.A novel filter structure is designed by coupling two micro-ring resonators with Mach-zender interferometer and using SOI material with excellent thermal and optical performance as the device raw material in this paper.The transfer function of the filter is derived by using the flow chart theory,the micro-ring resonance theory and mason's formula.Simulation results indicates that when the difference between the circumference of the microloop(L)and the arm length of the upper and lower arms of the mach-zehnder interferometer(Δd)satisfies the following relation,the output spectrum of the filter is flat at the top and steep at the edge.Compared with the ordinary mach-zehnder interferometer filter,the filtering performance of the proposed filter is obviously improved.
作者
宫原野
董姗姗
丁智
牛长流
GONG Yuanye;DONG Shanshan;DING Zhi;NIU Changliu(School of Computer Engineering,Bengbu University,Bengbu 233000,China;College of information&Network Engineering,Anhui Science and Technology University,Bengbu 233000,China;College of Information,North China University of Technology,Beijing 100144,China)
出处
《北京石油化工学院学报》
2020年第3期60-64,共5页
Journal of Beijing Institute of Petrochemical Technology
基金
安徽科技学院校级一般项目(X2019048)
蚌埠学院工程化教学改革试点课程项目(2017GCKC5)
蚌埠学院校级实践基地建设项目(2017sjjd02)
蚌埠学院校级新工科教学研究项目(2020XGKJY16)。
作者简介
宫原野(1992-),男,硕士,助教,研究方向为光纤通信技术、移动通信技术,E-mail:1151057577@qq.com。
