Patent ID: 7050681
Filing Date: 2006-05-23
Classification: G02B,Y10T

Abstract:
1. An optical apparatus, comprising: a planar transmission optical waveguide on a waveguide substrate, the transmission optical waveguide including an optical junction region, the transmission optical waveguide being adapted for enabling transverse-transfer of optical power between the transmission optical waveguide and a second optical waveguide at the optical junction region, the waveguide substrate or the transmission optical waveguide being adapted for receiving and positioning the second optical waveguide relative to the optical junction region of the transmission optical waveguide so as to enable transverse-transfer of optical power therebetween, the transmission optical waveguide being adapted for enabling substantially adiabatic transverse-transfer of optical power between the transmission optical waveguide and the second optical waveguide at the optical junction region, at least a portion of the transmission optical waveguide including a core and lower-index cladding, a refractive index of the core or the cladding varying longitudinally along at least a portion of the optical junction region thereof.