Patent ID: 9118160
Filing Date: 2015-08-25
Classification: H01S

Abstract:
1. A vertical-cavity surface-emitting laser (VCSEL) comprising: a silicon substrate comprising a bulk silicon layer and a first impurity layer disposed in the bulk silicon layer; a semiconductor light source-active layer comprising a lower reflective layer disposed on the silicon substrate, a light generation layer disposed on the lower reflective layer, and an upper reflective layer disposed on the light generation layer; and a lower current aperture disposed within the first impurity layer and disposed under a bottom surface of the lower reflective layer disposed on the first impurity layer, wherein the first impurity layer and the lower reflective layer directly contact each other, wherein the first impurity layer comprises first conductive type impurities doped in the silicon substrate, and wherein the lower reflective layer has the same conductive type as that of the first impurity layer.