Patent ID: 9590392
Date: 2017-03-07
CPC Classifications: H01L,H01S

Claim:
1. A laser device comprising: a gallium and nitrogen containing material comprising a semipolar surface configured on a (30-3-1) orientation, a (30-31) orientation, a (20-2-1) orientation, or a (30-3-2) orientation, the semipolar surface having an offcut of the orientation; an n-type cladding region overlying the semipolar surface; an active region comprising at least one light emitting active layer region overlying the n-type cladding region; the light emitting active layer region comprising a quantum well region or a double hetero-structure region; a p-type cladding region overlying the active region; a conductive oxide overlying the p-type cladding region; a laser stripe region comprising at least a portion of the p-type cladding region and the conductive oxide, the laser stripe region being characterized by a cavity orientation substantially parallel to the projection of a c-direction, the laser stripe region having a first end and a second end; a first facet having a first mirror surface provided on the first end of the laser stripe region; a reflective coating provided on the first facet; and a second facet having a second mirror surface provided on the second end of the laser stripe region; wherein the laser device is configured to emit electromagnetic radiation with a peak wavelength of between 400 nm and 500 nm or between 500 nm and 560 nm.