COST-216 comparative study of eigenmode analysis methods for singleand coupled integrated optical waveguides

摘要

The COST (European Cooperation in the Field of Scientific andnTechnical Research) project 216 consists in studying the technology andncharacterization of advanced devices for optical switching and routing.nWithin the working group `Device Modelling' attention is focussed on thenmodeling of optical waveguide switches. As a first effort the groupncompared various modelling techniques for integrated optical waveguidesnby analysing a single rib and two coupled rib III-V waveguides. Thennumerical results give the effective refractive index value for thenfundamental quasi TE-mode in the case of the single waveguide and thencoupling length between the (lowest-order) symmetric and antisymmetricnquasi-TE mode of the coupled waveguides. Some conclusions are formulatednwith respect to the comparison of the obtained numerical data