Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Grating emission angle issue › Reply To: Grating emission angle issue
September 26, 2023 at 7:27 pm
Guilin Sun
Ansys Employee
There might be theoretical issue you may need to consider. Does the theory works for all the duty cycle cases? is the SiN grating effective index correct? it is bragg waveguide grating so the waveguide neff is different from the WG grating.
The trend is the same. there might be a systematic error.Â