I have a ZBF which is rotational non-symmetric. After I propagate the mode profile through my rotational non-symmetric system, I couple into a single mode fiber. Now, I want to examine how the coupling efficiency changes due to a rotation of the Input-ZBF (simulated data of a waveguide).
I tried adding a Coordinate Break after the Start-Surface, but nothing happens when I change the Tilt about Z on the CB. I guess it has something to do with the rotation matrix, but there must be a way how I can analyze this tolerance.
Thank you in advance.