Hello,
I’m using OptiBPM to look at edge-modes in 3D waveguide structures (evanescently coupled waveguides).
I have a layout of slowly curled helical waveguides arranged in a honeycomb-lattice. As I could not figure out how to make helices, I just stacked a lot of cylindrical waveguides on top of each other. So my files get very big. Therefore I just run the simulation for 270um of propagation, save the f3d-file of the output field, and put this in at the beginning again.
Now the problem: After some propagation the intensity in the whole structure seems to be bigger than the input-intensity!
To me it looks like a problem of scaling.
Is OptiBPM doing some automatic rescaling of the field, that I’m not aware of? Am I missing something? Or is this a bug?
I’d be very grateful for some help.
.
