Patent ID: 8619828
Filing Date: 2013-12-31
Classification: B82Y,H01S

Abstract:
1. A group III nitride semiconductor laser diode comprising: a group III nitride substrate having a semi-polar primary surface; a first cladding layer having a first conductivity type, the first cladding layer comprising aluminum-containing group III nitride, the first cladding layer being provided on the group III nitride substrate; an active layer provided on the first cladding layer; a second cladding layer having a second conductivity type, the second cladding layer comprising aluminum-containing group III nitride, the second cladding layer being provided on the active layer; an optical guiding layer provided between the first cladding layer and the active layer and/or between the second cladding layer and the active layer, the optical guiding layer comprising a first layer and a second layer, the first layer comprising In the wavelength of laser light being in a range of 480 nm to 550 nm; wherein the optical guiding layer is provided between the first cladding layer and the active layer; and wherein group III nitride semiconductor laser diode further comprises: