The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
Dec. 19, 2013
Soraa Laser Diode, Inc., Goleta, CA (US);
James W. Raring, Goleta, CA (US);
Daniel F. Feezell, Goleta, CA (US);
Nicholas J. Pfister, Goleta, CA (US);
Rajat Sharma, Goleta, CA (US);
Mathew C. Schmidt, Goleta, CA (US);
Christiane Poblenz Elsass, Goleta, CA (US);
Yu-Chia Chang, Goleta, CA (US);
Soraa Laser Diode, Inc., Goleta, CA (US);
Abstract
An optical device includes a gallium nitride substrate member having an m-plane nonpolar crystalline surface region characterized by an orientation of about −1 degree towards (000-1) and less than about +/−0.3 degrees towards (11-20). The device also has a laser stripe region formed overlying a portion of the m-plane nonpolar crystalline orientation surface region. In a preferred embodiment, the laser stripe region is characterized by a cavity orientation that is substantially parallel to the c-direction, the laser stripe region having a first end and a second end. The device includes a first cleaved c-face facet, which is coated, provided on the first end of the laser stripe region. The device also has a second cleaved c-face facet, which is exposed, provided on the second end of the laser stripe region.