Patent ID: 6944198

Claim:
An edge-emitting semiconductor laser type semiconductor optical component comprising: a semiconductor material substrate, a bottom cladding layer containing n-type carriers, an active layer forming one of more quantum wells, a bottom confinement layer disposed between the active layer and the bottom cladding layer, wherein the bottom confinement layer has a thickness of approximately 140 nm; a top cladding layer containing p-type carriers, which component is characterized in that said bottom cladding layer has a higher refractive index than said top cladding layer, wherein the difference between the refractive index of said bottom cladding layer and that of said top cladding layer is at least 0.01, a top confinement layer disposed between the active layer and the top cladding layer, wherein the top confinement layer has a thickness of approximately 140 nm; and a reflective layer disposed between said substrate and said bottom cladding layer, wherein an output of the semiconductor optical component is along an edge thereof.