通过matlab的M文件调用optisystem打开OSD文件，并进行仿真，把数据返回到matlab画图。很实用，简单。OSD一定要用optisystem13版以上的才能打开。(Through the MATLAB M file, call optisystem, open the OSD file, and simulation, the data returned to the MATLAB drawing. Very practical, simple. OSD must use more than optisystem13 version to open)