Integrated optical polarizer

Abstract Theoretical and experimental investigations of an integrated optical polarize are reported. The principle of the polarizer resides in transforming a waveguide into a leaky waveguide by depositing a dielectric multilayer superstrate comprising materials with higher refractive indices. The dielectric multilayer is so designed that TM modes are transmitted as the result of Brewster's law and interference effects, whereas TE modes are reflected back into the waveguide.