The matlab program code about soliton's propagation

[mark gazi]

Hello, my friend:
Recently, I encounter a MATLAB program problem on the propagation of the soliton in
dielectric . I find that many people use a beam propagation method ( split-step fft ) in order
to simulate this procedure. But I cann't get incorrect result.
I am eager to get help from my friend who am good at this method . Thank you!

 

[n0_3sc]

I know about this propagation method and the simulation involved in matlab. However, I cannot understand your post/question.
Are you having trouble obtaining a certain result? If so, what are the conditions/parameters?