Veröffentlichungen und Präsentationen

We report the results of simulation showing light coupling in waveguides through prism coupling method. Prism coupling method of light coupling in waveguides is a dominant method adopted by photonic device fabricators. It is necessary to understand the effect various parameters on light coupling in such processes. We used industry standard PDE solver COMSOL Multiphysics to study and analyze the results. It is assumed that light enters at one of the input coupling prism and is decoupled via another prism. Various parameters such as air gap between the prism and waveguide, angle of prism, misalignment between the prism and waveguide, effect of epoxy used to bind prism with waveguide, etc are analyzed. Also the effect of index mismatch between the prism and waveguide also understood. Wave equation obtained from Maxwell’s equations are employed which are solved using COMSOL.