A semiconductor laser element includes: a semiconductor laminated structure for emitting a laser light, including an active layer interposed between a first cladding layer of a first-conductivity type and a second cladding layer of a second-conductivity type, the first cladding layer and the semiconductor...http://www.google.de/patents/US5592502?utm_source=gb-gplus-sharePatent US5592502 - Semiconductor laser element and method for adjusting self-induced oscillation intensity of the same
