Patent ID: 7426227
Filing Date: 2008-09-16
Classification: B82Y,G11B,H01L,H01S

Abstract:
1. A semiconductor laser device comprising: a first cladding layer, which is made of a nitride semiconductor of a first conductivity type and is formed over a substrate; an active layer, which is made of another nitride semiconductor and is formed over the first cladding layer; a second cladding layer, which is made of still another nitride semiconductor of a second conductivity type and is formed over the active layer; and an electrode, which is formed over the second cladding layer and injects striped current into the active layer, wherein a recess is formed in the active layer beside and along a region of the active layer to which the striped current is injected, and wherein the recess is filled in with a spontaneous-emission-absorbing member for absorbing spontaneous emission that has been radiated from the active layer.