Patent ID: 8306081

Claim:
An optical device comprising: a gallium nitride substrate member comprising indium containing entities, gallium containing entities, and nitrogen containing entities, the gallium nitride substrate member having an indium content ranging from about 1 to about 50% by weight, the gallium nitride substrate member having a semipolar crystalline surface region or a non-polar crystalline surface region; laser stripe region comprising an indium content ranging from about 1 to about 50% by weight and formed overlying a portion of the semipolar crystalline orientation surface region or the non-polar crystalline surface region, the laser stripe region being characterized by a cavity orientation in a predefined direction, the laser strip region having a first end and a second end; a first cleaved facet provided on the first end of the laser stripe region; and a second cleaved facet provided on the second end of the laser stripe region; wherein the gallium nitride substrate member is sliced from a boule grown epitaxially on a seed crystal; and wherein the seed crystal comprises a seed lattice constant and the boule comprises a boule lattice constant, the seed lattice constant being within about 1% of the boule lattice constant.