Patent ID: 6754245
Filing Date: 2004-06-22
Classification: B82Y,H01S

Abstract:
A surface-emitting laser diode comprising:an active layer; p-type and n-type material layers on opposite sides of the active layer; a first distributed Bragg reflector (DBR) layer formed on the n-type material layer; an n-type electrode connected to the active layer through the n-type material layer such that voltage is applied to the active layer for lasing; a spacer formed on the p-type material layer with a laser output window formed at the top of a protrusion of the spacer and aligned with the first DBR layer, the spacer being thick enough to enable holes to effectively migrate across a thickness of the spacer layer to a center portion of the active layer; a second DBR layer formed on the laser output window; and a p-type electrode connected to the active layer through the p-type material layer such that voltage is applied to the active layer for lasing.