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. 06, 2013
Filed:
Sep. 25, 2012
Fujikura Ltd., Tokyo, JP;
Michihiro Nakai, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
The laser device includes: a seed light source that outputs seed light; a pumping light source an amplification optical fiber as the amplifier that amplifies the seed light with an element pumped by the pumping light source; a monitor unit that is provided between the seed light source and the amplification optical fiber, and monitors the intensity of the light output from the amplification optical fiber; and a light source controller that controls the seed light source. In this laser device, when the light input to the monitor unit has an intensity equal to or higher than a predetermined intensity while the seed light is not input to the amplification optical fiber, the light source controller forces to output the seed light from the seed light source.