Patent ID: 7215692
Filing Date: 2007-05-08
Classification: G02B,H01L,H01S,H04L

Abstract:
1. A surface emitting laser having a light emitting surface, said laser comprising: a substrate; a plurality of semiconductor layers formed on said substrate; one of said semiconductor layers comprising an active layer having an active region therein; a first reflector located on one side of said active layer and a second reflector located on the opposite side of said active layer, at least one of said reflectors allowing a partial transmission of light energy therethrough; one of said semiconductor layers being a current controlling layer, said current controlling layer being penetrated by a plurality of hollow cavities; an aperture region in said current controlling layer which controls current flowing through said active region, said aperture region being defined by a conductive region in said current controlling layer bordered by non-conductive regions in said current controlling layer, and wherein one of said non-conductive regions surrounds one of said plurality of hollow cavities; and first and second electrodes located on said laser device to enable biasing of said active region.