Optical Isolator with Optical Polarizers Having High Transmission, Corrosion Resistance and Reduced Thickness

A method of forming an optical isolator comprising:

• (a) providing a polarizer and an analyzer each comprising:
• a dielectric substrate,
• a plurality of spaced elongated dielectric ridges positioned or disposed on a surface of the dielectric substrate, wherein each dielectric ridge has a length direction that extends along the surface of the dielectric substrate and each dielectric ridge includes a pair of spaced sides that extend away from the surface of the dielectric substrate and a top spaced from the surface of the dielectric substrate and extending between the spaced sides opposite the surface of the dielectric substrate, and
• an electrically conductive coating on each side of each dielectric ridge;
• (b) coupling the dielectric ridges of the polarizer to one surface of a Faraday rotator;
• and
• (c) coupling the dielectric ridges of the analyzer to an opposing surface of the Faraday rotator.