中文说明：非线性光纤光学中用来仿真二阶色散、三阶色散以及SPM的程序，对刚开始进行科研的人有很大帮助。
English Description：
The program used to simulate second-order dispersion, third-order dispersion and SPM in nonlinear optical fiber optics is of great help to those who have just started scientific research.