Patent ID: 9166373
Filing Date: 2015-10-20
Classification: H01S

Abstract:
1. A laser device comprising: a gallium and nitrogen containing material having a semipolar surface configured on an offcut orientation to one of either a (60-6-1) plane, a (60-61) plane, a (50-5-1) plane, a (50-51) plane, a (40-4-1) plane, (40-41) plane, a (30-3-1) plane, a (30-31) plane, a (20-2-1) plane, a (20-21) plane, a (30-3-2), or a (30-32) plane; a laser stripe region formed overlying a portion of the semipolar surface, the laser stripe region being characterized by a cavity orientation substantially parallel to a projection of a c-direction, the laser stripe region having a first end and a second end; a first facet provided on the first end of the laser stripe region; a second facet provided on the second end of the laser stripe region; an n-type cladding region overlying the semipolar surface; an active region comprising at least one active layer overlying the semipolar surface, the active region comprising a quantum well region or a double hetero-structure region; and a p-type cladding region overlying the semipolar surface; wherein the laser stripe region is characterized by a width configured to emit a laser beam having a selected ratio of a first polarization state and a second polarization state, the width configured to emit the laser beam operable in a single lateral mode with an internal loss of less than 9 cm