Patent ID: 6950579

Claim:
A polarization-independent optical polymeric intensity modulator, comprising: a substrate; a lower cladding layer formed on the substrate; a core layer on said lower cladding layer, said core layer having a first and a second optical guiding paths including polymers poled by electric field, wherein each input and output thereof are interconnected; an upper cladding layer formed on said core layer and surrounding said first and second optical guiding paths of the core layers; and a first, second and third electrodes formed outside said cladding layers to apply electric fields to said first and second optical guiding paths, wherein said first and second electrodes are each positioned on the upper sides of said first and second optical guiding path (i.e., the upper surface of said upper cladding layer), and said third electrode is positioned on the lower side of said optical guiding path (i.e., the upper surface of said substrate), and wherein the electric field applied to said first optical guiding path and the electric field applied to said second optical guiding path are symmetric and have inclinations of about 45° with respect to the surface of the substrate.