I’m trying to work on an application where the source needs to be a continuous wave mode source (i.e. single valued frequency mode source), however, the transmission looks very weird and a lot of instability is observed.
Is there something with these conditions?
N.B. When I make the source a pulse in the time domain (broadband source), the transmission looks fine. That’s why I think the problem is from the source and not from the structure given that the structure is a straight silicon waveguide.
short_optical_isolator 3.fsp (313.3 KB)