Patent ID: 7391947
Filing Date: 2008-06-24
Classification: G02B

Abstract:
1. An optical waveguide device comprising: a bulk of uniform chemical composition with an intrinsic refractive index; and, a plurality of adjacent regions of the bulk, each adjacent region having a refractive index differing from the intrinsic refractive index and constituting a respective waveguide portion of a plurality of adjacent waveguide portions disposed in the bulk along a waveguide propagation axis, each waveguide portion having a cross-sectional refractive index profile incapable of supporting a fundamental mode of a signal having a telecommunications infrared (TIR) wavelength; wherein the plurality of adjacent waveguide portions have a collective cross-sectional refractive index profile capable of supporting a fundamental mode of the signal having the TIR wavelength for propagation of the signal through the plurality of adjacent waveguide portions along the waveguide propagation axis.