波动方程有限差分法射线追踪，希望对大家有帮助-FD ray tracing code,it is a fortran code, hope it is useful for you

M-Z干涉仪结构有限差分光速传播法源程序-The source program of M-Z Interferometer in FD-BPM

利用FD-BPM分析Y型波导中的电磁波传播，包括边界条件设定，模式设定等-The use of FD-BPM analysis of Y-type waveguide propagation of electromagnetic waves, including boundary condition setting, mode setting, etc.