马赫-曾德尔干涉仪辅助的光纤环特性  

Characteristics of Mach-Zehnder Interferometer-Assisted Fiber Ring Resonator

作　　者：李卫彬[1,2] 孙军强[1] 

机构地区：[1]华中科技大学光电子科学与工程学院武汉光电国家实验室,湖北武汉430074 [2]河南理工大学物理化学学院,河南焦作454000

出　　处：《中国激光》2009年第3期695-698,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金(60678020)资助项目

摘　　要：提出了一种马赫-曾德尔干涉仪辅助的光纤谐振环新结构,利用传输矩阵法,推导了该器件的输出表达式和半峰全宽(FWHM)表达式。进行了数值模拟,结果显示其具有周期性的窄带带阻滤波特性。分析了马赫-曾德尔干涉仪两臂产生的相差以及耦合器的耦合系数对器件输出谱的影响。研究结果对该器件的实际加工和进一步改善其滤波性能具有参考意义。A novel fiber ring resonator based on Mach-Zehnder (M-Z) interferometer is proposed. Its transmission function is theoretically analyzed using the transfer matrix method. The expression for the full width at half maximum of the transmission spectrum is also derived. Numerical simulations show that transmission spectrum has the periodic narrow stopband filtering characteristic. The influence of phase difference between the two arms of M-Z interferometer and coupling coefficient on the transmission spectrum is also analyzed. The results are of important significance to its actual processing and improvement of filtering characteristic.

关 键 词：光通信 马赫-曾德尔干涉仪 光纤谐振环 传输矩阵 

分 类 号：TN253[电子电信—物理电子学]