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EPIPPROP

A WDM/DWDM model for AWGs and Echelle Gratings

 IntroductionFeaturesOptions

Introduction

Features
‣ AWGs
‣ Echelle Gratings
    ‣ Rowland Circle Grating
    ‣ Stigmatic Grating
    ‣ Perfect Chirped Grating
    ‣ Corner Facet Rounding
 ‣ Cross-talk/Tapering
‣ Multi-etch Tapers
‣ Channel Broadening
‣ Surface Roughness
‣ Export to GDSII

Options

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Publications

Corner Facet Rounding

Model the effect of corner rounding on your grating's performance

Epipprop provides tools to model the effect of corner rounding on your echelle grating or planar concave grating. Often the sharp features of a design can be lost in the etch process and it can be hard to quantify the effect on the device performance. Epipprop can round any arbitrary grating surface to a specific rounding radius and calculate the effect on the grating's performance.

You can see below the effect of rounding on the performance of a typical grating. 

No corner rounding:

Results with no rounding

1um corner rounding:

Results with no rounding

2um corner rounding:

Results with no rounding