西华大学学报（自然科学版）2018，Vol.37Issue(1)：102-107,6.DOI:10.3969/j.issn.1673-159X.2018.01.015
微环谐振器辅助马赫-曾德尔干涉仪滤波性能分析
Characteristic Analysis for Micro-ring Resonator Assisted Mach-Zehnder Interferometer Filter
宫原野 1董姗姗2
作者信息
- 1. 中国移动通信集团安徽有限公司蚌埠分公司,安徽蚌埠233000
- 2. 北方工业大学电子信息工程学院,北京100144
- 折叠
摘要
Abstract
To improve the filtering performance of conventional Mach-Zehnder interferometer (MZI) filter,a novel structure which combining ring resonator with MZI is proposed in this paper.Transfer function of the improvement filter was established by using the Signal Flow Graph and the characteristic of the output spectrum was simulated as well.The results of numerical simulation indicate that when MZI with the length difference of interference arms is chosen,through the phase modification provided by the ring resonator and the optimization of the coupling coefficient,the spectrum of output port has the properties of narrow band with high extinction ratio.When the MZI with the length identical of interference arms is adopted,by optimizing the parameters of the structure,a maximum flatness filtering response is obtained,the isolation in stopband (＞ 40dB) and the rolloff in transition band are strengthened.Compared with the filtering performance of conventional MZI filter,the novel optical filter proposed in this paper improved the performance obviously.关键词
光学器件/信号流程图理论/光学滤波器/微环谐振器/马赫-曾德尔干涉仪Key words
optical device/signal flow method/optical filter/ring resonator/Mach-Zehnder interferometer分类
信息技术与安全科学引用本文复制引用
宫原野,董姗姗..微环谐振器辅助马赫-曾德尔干涉仪滤波性能分析[J].西华大学学报（自然科学版）,2018,37(1):102-107,6.
