可调微型环阵列加强马赫-曾德尔滤波性能分析

Filter Performance Analysis of a Tunable Mach-Zehnder Interferometer Enhanced with a Micro-ring Resonator Array

摘要:

提出并分析了一种将微型环谐振腔阵列耦合集成在马赫-曾德尔干涉仪(MZI)的一臂上实现的集成波导型滤波器结构。利用微型环阵列可在MZI的谱特性上引入多个零点和极点，从而对输出频谱进行优化，使其在中心波长1550nm处具有矩形系数为0．4的门状响应，并且保持比较大的自由谱宽(28nm)。使用新型电光聚合物作为波导材料可以对器件进行快速调谐，在折射率变化0．001时中心波长调谐1nm。

Abstract:

A novel integrated waveguide filter composed of Mach-Zehnder interferometer(MZI) side-coupled with a micro-ring resonator array is proposed and analyzed.The micro-ring resonator array will add more poles and zeros to the spectra of the MZI.Box-like transmission spectrum will be optimized,that the shape factor is 0.4 around the central wavelength of 1 550 nm,and large free spectral range (28 nm) is predicted.New electro-optic material is used to realize the fast tuning,as the central wavelength can be shifted by 1 nm with the change of refractive index of 0.001.