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:
Feb. 02, 2021
Filed:
Oct. 21, 2019
Applicant:
Hrl Laboratories, Llc, Malibu, CA (US);
Inventors:
Daniel Yap, Newbury Park, CA (US);
Rongming Chu, Agoura Hills, CA (US);
Andrew Pan, Malibu, CA (US);
Assignee:
HRL Laboratories, LLC, Malibu, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/30 (2006.01); H01S 5/187 (2006.01); H01S 5/34 (2006.01);
U.S. Cl.
CPC ...
H01S 5/309 (2013.01); H01S 5/187 (2013.01); H01S 5/34 (2013.01);
Abstract
A laser or light emitter for operation at a cryogenic temperature includes a single quantum well layer, an n-type barrier layer directly on a first surface of the single quantum well layer, and a p-type barrier layer directly on a second surface of the single quantum well layer opposite the first surface of the single quantum well layer. The single quantum well layer is between the p-type barrier layer and the n-type barrier layer and the compositions of the n-type barrier layer and the p-type barrier layer are graded.