Reply To: how to simulate the loss of bend waveguide?

[Guilin Sun]

For the simulation error, you may need to increase the number of trial modes.

When loss is small, it is likely that you need to increase simulation accuracy.

Some tips can be found here  https://optics.ansys.com/hc/en-us/articles/4409707153811-Bent-Waveguide-FEEM