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. 10, 2015
Filed:
Jun. 20, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Mayumi Naito, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A receiving device includes: an amplification fiber configured to include properties to amplify signal light when pumping light is supplied to the amplification fiber and to attenuate the signal light when the pumping light is stopped supplying to the amplification fiber; a receiver configured to receive the signal light output from the amplification fiber; a pumping light source configured to supply the pumping light to the amplification fiber; and a controller configured to control supplying and stopping of the pumping light from the pumping light source to the amplification fiber, so that a level of the signal light input to the receiver is contained within a dynamic range of the receiver.