Waveguide

_________________________________

                                clad_thickness
        width
      ___________    _ _ _ _ _ _
     |           |
_____|           |____          |
                                wg_heigth
slab_thickness                     |
_______________________ _ _ _ _ __

sub_thickness
_________________________________

To define a waveguide we need to define:

• the material functions or refractive indices of box, waveguide and clad

• thickness of each material

• x and y_steps for discretizing the structure

• sidewall angle

• wavelength that can be used in case the refractive index are a function of the wavelength

Where all units are in um

import modes as ms

wg = ms.waveguide()
wg

0.5 x 0.22 um, n_wg = 3.4757, n_clad = [1.444023621703261]

ms.waveguide?

wg_slab = ms.waveguide(slab_thickness=0.09)
wg_slab

0.5 x 0.13 um, n_wg = 3.4757, n_clad = [1.444023621703261]

wg = ms.waveguide(angle=80)
wg

0.5 x 0.22 um, n_wg = 3.4757, n_clad = [1.444023621703261]