Ansys Employee

Hello Xun,

Thanks for using the Forum. Apologies for the delay in  response.

While calculating loss of a ring resonator, you have to consider the resonance and loss of the waveguide coupler.

I run the simulation for a wide wavelength range:

Hope this answered your question.

You can find more information here : Ring resonator getting started - Design and initial simulation – Ansys Optics


Thanks and regards