Patent ID: 6778251
Filing Date: 2004-08-17
Classification: G02F

Abstract:
A polarization independent liquid crystal tunable filter, comprising:A first substrate having a top surface optical element rotating mirror and a bottom surface having a polarization beam splitter optical element, a first electrode layer positioned over the polarization beam splitter optical element, first alignment layer positioned over the first electrode layer, and a optical element waveguide nanostrucuture grating filter positioned over the first alignment layer, a second substrate placed in opposition to the first substrate and having bottom surface optical element rotating mirror and a top surface having a polarization beam splitter optical element, a second electrode layer positioned over the polarization beam splitter optical element and a second alignment layer positioned over the second electrode layer, said second substrate positioned such that its top surface is opposed to the bottom surface of the first substrate, liquid crystals coupled between the first and second substrates.