“8”字型微环谐振器辅助马赫-曾德尔干涉仪滤波器  

Mach-Zehnder Interferometer Filter Assisted by“8”Shaped Microring Resonator

作　　者：董姗姗 宫原野 牛长流[3] DONG Shanshan;GONG Yuanye;NIU Changliu(College of Information&Network Engineering,Anhui Science and Technology University,Bengbu 233030,Anhui,China;School of Computer Science and Information Engineering,Bengbu University,Bengbu 233030,Anhui,China;School of Information,North China University of Technology,Beijing 100144,China)

机构地区：[1]安徽科技学院信息与网络工程学院,安徽蚌埠233030 [2]蚌埠学院计算机与信息工程学院,安徽蚌埠233030 [3]北方工业大学信息学院,北京100144

出　　处：《江汉大学学报（自然科学版）》2022年第3期90-96,共7页Journal of Jianghan University：Natural Science Edition

基　　金：安徽科技学院校级一般项目(X2019048);蚌埠学院校级科研项目(2020ZR13);蚌埠学院校级新工科教学研究项目(2020XGKJY16)。

摘　　要：为改善常规马赫-曾德尔干涉仪滤波器的滤波性能,设计了一种“8”字型微环谐振器辅助马赫-曾德尔干涉仪滤波器。根据微环谐振理论、波导理论与梅森公式,推导出滤波器输出端的传递函数,并采用MATLAB软件仿真。通过调整滤波器的结构参数,在滤波器的输出端获得顶部平坦、边沿陡峭的输出光谱。基于SOI材料的热膨胀原理,通过调节温度来改变SOI材料的有效折射率,进而使得滤波器的输出光谱发生漂移,从而使得滤波器具有可调谐性。To improve the filtering performance of conventional Mach-Zehnder interferometer filters,a Mach-Zehnder interferometer filter assisted by“8”shaped microring resonator was designed.According to the microring resonance theory,the waveguide theory,and the Mersen formula,the transfer function of the filter output was derived,and the output spectrum of the filter was simulated in MATLAB.By setting appropriate structural parameters,the output spectrum with obvious roll drop along the flat top edge was obtained at the output end of the filter.Using the principle of thermal expansion of SOI material,the effective refractive index of SOI material is changed by adjusting the temperature,so that the filter has tunability.

关 键 词：微环谐振器 马赫-曾德尔干涉仪 信号流程图 光学器件 可调谐滤波器 

分 类 号：TN256[电子电信—物理电子学]