Echelle Gratings
Features of the Echelle Grating Model
In addition to the standard features of Epipprop's model, our Echelle grating model includes the following features:
- Tunable grating templates for Rowland circle, bifocal point stigmatic designs and our unique Photon Design Perfect Chirped Grating design.
- Space output waveguide channels by wavelength and frequency for Rowland circle and Perfect Chirped Grating designs.
- Import any arbitrary user-defined grating.
- Four different facet geometries including flat facets, curved facets, corner mirrors and DBRs (includes a 1D DBR Model of reflection).
- Supports any grating surface, including metals.
- Propagation algorithm supports reflections between grating facets, allowing you to design complex grating topologies such as corner mirrors.
- Control tilt on grating facets in the plane for any blazed grating.
- Tilt the grating out of plane to model non-vertical facets and coupling between multiple vertical slab modes.
- Model fabrication tolerances by modelling corner rounding of the grating facets, even for imported gratings.
- Simulate multiple vertical slab modes and the coupling between them.
- Import response curves to model any arbitrary reflectivity from the grating surface.
