以matlab代码的仿真M-FILE，使用转变矩阵法来评估光波导中的模式耦合方程以及光栅的反射谱分散的法布里-珀罗滤波器模拟-Perot filter simulation- simulation with matlab code M-FILE, to assess the reflection spectrum of mode coupling waveguide grating dispersion equations and the transformation matrix method

利用FDTD对波导中的光栅进行仿真，可计算透过率，衍射效率等(Using FDTD to simulate the grating in the waveguide, we can calculate the transmissivity, diffraction efficiency and so on)

利用ledit绘制波导及光栅，用于制作芯片的版图(The waveguide and grating are plotted by ledit, which is used to make the layout of the chip)

simulation book. it can help us simulate the grating and the waveguide,it is very useful and comfortable