Patent ID: 7843982
Filing Date: 2010-11-30
Classification: B82Y,G02B,H01L,H01S

Abstract:
1. A semiconductor laser structure, comprising: a substrate; a first cladding layer formed over said substrate, said first cladding layer being substantially free of nitrogen; a first waveguiding layer formed over and in physical contact with said first cladding layer, said first waveguiding layer being substantially free of nitrogen; a first spacing layer formed over and in physical contact with said first waveguiding layer, said first spacing layer containing nitrogen; a multiple quantum well active layer disposed in a first plane formed over and in physical contact with said first spacing layer, said multiple quantum well active layer comprised of a nitride of indium, gallium, and arsenide (InGaAsN), said active layer comprising: a second spacing layer formed over and in physical contact with said multiple quantum well active layer, said second spacing layer containing nitrogen; a second waveguiding layer formed over and in physical contact with said second spacing layer, said second waveguiding layer being substantially free of nitrogen; a second cladding layer formed over and in physical contact with said second waveguiding layer, said second cladding layer being substantially free of nitrogen; and wherein said semiconductor laser structure emits light from at least said first lateral edge.