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Ansys Learning Forum Forums Discuss Simulation Photonics Grating emission angle issue Reply To: Grating emission angle issue

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