Patent ID: 6487225
Filing Date: 2002-11-26
Classification: B82Y,H01S

Abstract:
A surface-emitting laser device comprising:an active layer; a pair of optical waveguide layers disposed on both sides of the active layer, having a band gap wider than or equal to that of the active layer; a pair of cladding layers disposed so as to sandwich the active layer and the optical waveguide layers, having a band gap of wider than or equal to that of the optical waveguide layers; a carrier block layer for confining carriers into the active layer disposed between the active layer and at least one of the optical waveguide layers, having a band gap wider than or equal to those of the active layer and the optical waveguide layer; and an inclined facet, formed so as to diagonally cross with an optical axis along the active layer, for reflecting light generated in the active layer to a layer thickness direction, wherein ends of the carrier block layer, pair of waveguide layers and pair of cladding layers constitute a part of the inclined facet whereby thermal resistance can be reduced.