Optimal configuration of integrated optical thin film polarizer on lithium niobate substrate

Experimental technique and devices

Thicknesses of dielectric buffer layer and metal film are key parameters which determine the optical characteristics of integrated optical thin film polarizer. An optimum polarizer configuration is found for single mode channel optical waveguides matched to a standard optical fiber (SMF-28). A suggested polarizer consists of a metal (al) film and a dielectric (Al2O3) buffer layer.