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, 2020
Filed:
Jan. 10, 2018
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventor:
Masahiro Kashiwagi, Sakura, JP;
Assignee:
FUJIKURA LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/067 (2006.01); H01S 3/102 (2006.01);
U.S. Cl.
CPC ...
H01S 3/067 (2013.01); H01S 3/102 (2013.01);
Abstract
In a case where a variation in reflection resistance among fiber lasers occurs, a reflection resistance of a fiber laser system as a whole is restored by reducing the variation while maintaining an output power of the fiber laser system as a whole. The fiber laser system includes a control section (C) configured to increase a proportion of a backward excitation power (PBi) in a fiber laser (FLi) so that fiber lasers (FLthrough FLn) less vary in reflection resistance.