Amrita Pati
Ansys Employee

Hi Duarte,

Thanks for sharing detailed information. Would you also be able to share a screenshot of the structure with the bottom waveguide? I believe the taper that is shown in the first screenshot is the top waveguide? Is it more like an inverse taper structure used in edge couplers? I would like to understand what the overall structure looks like. Also, I believe you are just looking at the coupling between the two waveuguides? Not the overall propagation through the top waveguide after the coupling?