Patent ID: 9184563
Filing Date: 2015-11-10
Classification: H01S

Abstract:
1. A laser diode device comprising: a substrate having a gallium- and nitrogen-containing surface, the substrate comprising a surface region and at least a first edge region; and a laser stripe overlying a portion of the surface region of the substrate, the laser stripe characterized by a length in a length direction, a first end, and a second, opposite end, the length direction being substantially orthogonal to the first edge region of the substrate, the laser stripe comprising: wherein the first end of the laser stripe comprises a first etched facet, and the second end of the laser stripe comprises a second etched facet, the first etched facet having a primary emission surface, the first etched facet being substantially parallel to and recessed from the first edge region of the substrate in the length direction, the first etched facet including a first portion of the n-type cladding region, and the first edge region including a second portion of the n-type cladding region; wherein the laser stripe is operable to emit electromagnetic radiation in a wavelength range selected from a first range from about 400 nm to about 435 nm, a second range from about 435 nm to about 480 nm, a third range from about 480 nm to about 505 nm, and a fourth range from about 505 nm to about 550 nm, and wherein the first edge region of the substrate comprises a first surface-treated region configured to interact with the electromagnetic radiation emitted by the laser stripe and propagating in the substrate.