Patent ID: 6954564
Filing Date: 2005-10-11
Classification: G02B,H01S

Abstract:
1. An integrated photonic apparatus comprising: a glass substrate having a major surface; a glass overcladding on the major surface of the substrate, wherein the glass overcladding includes a plurality of regions, each region having a different index of refraction, including a first region having a first index of refraction and a second region having a second index of refraction lower than the first index of refraction; a first waveguide formed along the major surface of the substrate, wherein the first waveguide has a higher index of refraction than an intrinsic index of refraction of adjacent portions of the substrate and the overcladding, and wherein the first waveguide has an edge along at least a portion of the first region of the glass substrate overcladding; and wherein the first region is positioned to substantially confine a pump light.