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:
Nov. 01, 2016
Filed:
Oct. 28, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Takashi Hagino, Fujimi, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/34 (2006.01); H01S 5/343 (2006.01); H03B 17/00 (2006.01); H01S 5/187 (2006.01); H01S 5/183 (2006.01);
U.S. Cl.
CPC ...
H01S 5/3432 (2013.01); H01S 5/187 (2013.01); H01S 5/18361 (2013.01); H03B 17/00 (2013.01);
Abstract
A surface emitting laser includes: a substrate; and a laminated body disposed over the substrate, wherein the laminated body includes a first mirror layer disposed over the substrate, an active layer disposed over the first mirror layer, and a second mirror layer disposed over the active layer, and surface roughness Ra of an uppermost layer of the first mirror layer is greater than or equal to 0.45 nm and less than or equal to 1.0 nm.