说明：  Brag.m：均匀布拉格光栅MATLAB反射谱仿真 MachZehnde_interferometer.m：分析耦合比及臂长差的改变对马赫-曾德尔干涉仪输出特性的影响 OADM.m：关于基于马赫-曾德尔干涉仪与光纤光栅的OADM
(Brag.m: Simulation of MatLAB Reflectance Spectrum of Uniform Bragg Grating Mach Zehnde_interferometer.m: Analysis of the influence of coupling ratio and arm length difference on the output characteristics of Mach-Zehnder interferometer OADM.m: About OADM Based on Mach-Zehnder Interferometer and Fiber Bragg Grating)