Patent ID: 7162132

Claim:
An optical waveguide structure comprising: a core layer having a first refractive index n core , a plurality of sub-regions within the core layer, said core layer sub-regions having a second refractive index n rods , wherein n rods −n core >0.1, said core layer sub-regions arranged in at least one array, the array of core layer sub-regions extending longitudinally along the waveguide and comprise a photonic band structure within the core layer for propagating an optical mode traveling through said waveguide structure, a cladding layer, said cladding layer located adjacent said core layer, said cladding layer having a thrd refractive index, n cladding , where n core >n cladding , and a plurality of sub-regions within the cladding layer, said cladding layer sub-regions contiguous with said core layer sub-regions.