To define the materials for the waveguide, perform the following procedure.
| Step | Action |
| 1 | Create the following dielectric material:
Name: cladding Refractive index (Re:): 1.442 |
| 2 | To save the material, click Store. |
| 3 | Create a second dielectric material:
Name: guide Refractive index (Re:): 1.45 |
| 4 | To save the material, click Store. |
| 5 | Create the following channel:
Profile name: channel 2D Profile definition material: guide |
| 6 | To save the channel, click Store. |