Integrated optical polarizer with high extinstion ratio and low insertion loss, and improved method of fabrication thereof

摘要: An optical polarizer is described in which a propagation layer, i.e., titanium diffused light guiding region lithium niobate Z-cut crystal, covered with dielectric buffer layer of ZnO. The by meal typically aluminum, although gold or silver can be used. thickness the chosen so as to increase attenuation TM modes radiation waveguide relative TE modes. fall within broad range and not required very precise achieve peak level attenuation.