Patent ID: 8358673
Filing Date: 2013-01-22
Classification: B82Y,H01S

Abstract:
1. A laser diode comprising a semi-polar GaN substrate, an active region, a waveguiding region, and upper and lower cladding regions, wherein: the semi-polar GaN substrate is cut along a semi-polar crystal growth plane; the active region is configured for electrically-pumped stimulated emission of photons at a lasing wavelength λ the waveguiding region comprises at least one waveguiding superstructure; the waveguiding superstructure comprises a plurality of In the intervening strain compensating barriers comprise sufficient Al to compensate for strain introduced by the optical confining wells; and the respective active, waveguiding, and upper and lower cladding regions are formed as a multi-layered laser diode over the semi-polar crystal growth plane of the semi-polar GaN substrate such that the waveguiding region guides the stimulated emission of photons from the active region, and the cladding region promotes propagation of the emitted photons in the waveguiding region.