Patent ID: 9106048
Filing Date: 2015-08-11
Classification: H01S

Abstract:
1. An integrated circuit, comprising: a hybrid laser configured to provide an optical signal having a wavelength, wherein the hybrid laser includes: a semiconductor layer including a region having a top surface and a bottom surface, wherein the semiconductor layer includes silicon; a material having a top surface and a bottom surface, wherein the bottom surface of the material is disposed on the top surface of the region, wherein the material includes a III-V semiconductor, and wherein the material has an optical gain at the wavelength that is larger than that of the semiconductor layer; a first mirror disposed under the bottom surface of the region; a second mirror disposed on the top surface of the material, wherein the first and the second mirror, includes a stack, out of the plane of the semiconductor layer, of alternating materials having a first index of refraction and a second index of refraction that is higher than the first index of refraction, and wherein the first mirror, the second mirror, the region and the material define an optical cavity out of a plane of the semiconductor layer; an optical waveguide defined in the semiconductor layer; a semiconductor substrate; and a buried-oxide layer having a bottom surface and a top surface, wherein the bottom surface of the buried-oxide layer is disposed on top of the semiconductor substrate, wherein the bottom surface of the semiconductor layer is disposed on the top surface of the buried-oxide layer, and wherein the semiconductor substrate is removed under the region so that the first mirror is disposed on the bottom surface of the buried-oxide layer; wherein the semiconductor substrate, the buried-oxide layer and the semiconductor layer constitute a silicon-on-insulator technology.