Ansys Learning Forum › Forums › Discuss Simulation › Optics › FDTD:: simulation of directional coupler › Reply To: FDTD:: simulation of directional coupler
April 10, 2024 at 9:07 pm
Guilin Sun
Ansys Employee
You can enforce the mesh to be symmetry if the coupling center is at the symmetry point:
Plane monitors can be at the center plane, or where you think the scattering is strong. You can extend the monitors to the inside of PML:
You first need to identify what causes the diverge. You may also use a monitor monitor.