Patent ID: 6728289
Filing Date: 2004-04-27
Classification: B29D,C23C,G02B,H01L,H01S

Abstract:
A vertical cavity surface emitting laser structure comprising:an underlying structure comprising an active region disposed between at least a first Bragg reflector and a second Bragg reflector; and at least one non-planar microstructure comprising a curved refractive microlens disposed on said first Bragg reflector and monolithically integrated with said underlying structure, said microlens being either concave or convex with respect to a central axis extending from said first Bragg reflector to said second Bragg reflector and having a focal length of 150 &mgr;m or less and a diameter of 1 mm or less, and wherein, when in operation, light propagates normal to the upper surface of said vertical cavity surface emitting laser structure.