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:
May. 04, 2021
Filed:
Dec. 31, 2018
Applicant:
Sharp Kabushiki Kaisha, Sakai, JP;
Inventors:
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/028 (2006.01); H01S 5/10 (2021.01); H01S 5/22 (2006.01); H01S 5/24 (2006.01); H01S 5/042 (2006.01); H01S 5/40 (2006.01); H01S 5/02 (2006.01); H01S 5/02216 (2021.01); H01S 5/16 (2006.01); H01S 5/02253 (2021.01);
U.S. Cl.
CPC ...
H01S 5/1003 (2013.01); H01S 5/0286 (2013.01); H01S 5/04254 (2019.08); H01S 5/1025 (2013.01); H01S 5/1039 (2013.01); H01S 5/1082 (2013.01); H01S 5/2202 (2013.01); H01S 5/24 (2013.01); H01S 5/0202 (2013.01); H01S 5/0282 (2013.01); H01S 5/0287 (2013.01); H01S 5/02216 (2013.01); H01S 5/02253 (2021.01); H01S 5/162 (2013.01); H01S 5/22 (2013.01); H01S 5/4031 (2013.01); H01S 2301/176 (2013.01);
Abstract
A semiconductor laser device includes an optical waveguide that extends toward a first end of the semiconductor laser device. The optical waveguide includes a first clad layer, an active layer, a second clad layer, and an electrode layer in this order. A reflecting surface, which has a dielectric film and a metal film in this order from the active layer, crosses the active layer at a second end of the optical waveguide.