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:
Aug. 30, 2011
Filed:
Oct. 30, 2008
Hiroyuki Furuya, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Shinichi Kadowaki, Hyogo, JP;
Masahiro Kashiwagi, Chiba, JP;
Kensuke Shima, Chiba, JP;
Hiroyuki Furuya, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Shinichi Kadowaki, Hyogo, JP;
Masahiro Kashiwagi, Chiba, JP;
Kensuke Shima, Chiba, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A fiber laser light source is provided with a laser resonator including a pair of fiber gratings optically connected to a fiber in a state that the fiber is interposed between the paired fiber gratings. The reflection center wavelength of a laser-exit side fiber grating, out of the paired fiber gratings, lies in a wavelength range where the reflectance of a fiber grating, out of the paired fiber gratings, closer to the pump laser light source is not smaller than 80% but not larger than 98%.