Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Simulation span dependent losses of waveguide mode › Reply To: Simulation span dependent losses of waveguide mode
October 16, 2024 at 4:11 pm
Guilin Sun
Ansys Employee
It seems the top has yspan 3um as the mode profile looks larger.Â
when you change spans, please make sure that you use fixed mesh size instead of number of meshes.
Not sure what the wavelength is. If SiO2 has very small loss, you can use simple dielectric refractive index.Â
Loss change can be due to PML distance and materials.Â