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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Coupling issue between a source (Gaussian) and circular Bragg grating (CBG) › Reply To: Coupling issue between a source (Gaussian) and circular Bragg grating (CBG)

May 24, 2024 at 6:21 pm
Amrita Pati
Ansys Employee

Hi Rezoana,

It seems to me more like a theoretical issue. I believe it will depend upon your geometry and the specific light-matter interactions that will take place. You can run a simulation for different distances and see how the coupling efficiency changes. Or maybe you could also try setting up an optimization task with the distance as a parameter within a specific range and the coupling efficiency as the objective function to determine what would be the best distance.

Regards,
Amrita