本程序计算AWG波分复用器中平板波导连接接口在耦合到下级光纤时，不同光纤宽度下衍射效率的分析-The program to calculate the slab waveguide AWG Wavelength Division Multiplexer connection interface coupled to the lower optical fiber, optical fiber widths of different diffraction efficiency of the an

计算亚波长光栅衍射效率,PBS,即偏振光分离-calculate subwave grating diffraction efficiency