Compute effective mode in a 2D wave guide; Solve the Helmholtz-Maxwell equation in a 2D waveguide.
The light is propagating in the z-direction, meaning, into the screen.
Two geometries are proposed: Ridge Laser and VCSEL laser.
Laurent NEVOU (2019). Light_WaveGuide2D (https://www.github.com/LaurentNevou/Light_WaveGuide2D), GitHub. Retrieved .