https://photond.com/fimmprop/applications/directional-coupler
Directional Coupler | FIMMPROP | Photon Design
A 3dB polarisation-insensitive directional coupler
directional couplerfimmpropphotondesign
https://photond.com/mt/applications/long-arm-mzi-with-euler-bends
Long Arm MZI with Euler Bends | MT-FIMMPROP | Photon Design
Multiple MMIs connected with Euler Bends simulated rigorously in 3D on a standard desktop
long armeulerbendsmtfimmprop