A full-vectorial multidomain spectral collocation modal analysis of dielectric optical waveguides

A novel solution method using efficient multidomain spectral collocation method in term of transverse magnetic fields is proposed for vector modal analysis of dielectric optical waveguides with discontinuous refractive index profile. The computational domain is divided into a few subdomains at the interfaces of different materials. Each one can be expanded by a suitable set of orthogonal basis functions and patched by considering the interfacial boundary conditions.