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:
Oct. 06, 2015
Filed:
Aug. 14, 2014
Applicant:
Nec Corporation, Tokyo, JP;
Inventor:
Takeshi Okamoto, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/08 (2006.01);
U.S. Cl.
CPC ...
H01S 3/08 (2013.01); H01S 3/08018 (2013.01); H01S 3/08022 (2013.01); H01S 3/08027 (2013.01); H01S 3/08031 (2013.01);
Abstract
A laser light source includes an optical resonator and a first optical filter. The first optical filter is provided outside the optical resonator, and does not constitute an optical resonator structure. For example, antireflection coating is performed on the optical resonator side of the first optical filter and on a surface on the opposite side thereto, and a reflection structure in which light after passing through the first optical filter is reflected in the direction to the optical resonator is not present on an optical path of the light.