Patent ID: 6934441
Filing Date: 2005-08-23
Classification: B82Y,G02B

Abstract:
1. A wavelength separation device comprising a plurality of optical heterostructures, wherein: said optical heterostructures are characterized by distinct transmission bandwidths; each of said plurality of optical heterostructures comprises a first bandgap region and a second bandgap region defined in a matrix of said optical heterostructure; said first and second bandgap regions of each of said optical heterostructures alternate in succession along respective dimensions of optical propagation of said heterostructure device; said first and second bandgap regions define first and second optical bandgaps of each said optical heterostructures and are characterized by periodic arrangements of inclusions in said matrix; and said first optical bandgap of each of said optical heterostructures is centered at a different wavelength than said second optical bandgap of each of said optical heterostructures such that one of said transmission bandwidths is defined between each of said first and second optical bandgaps.