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:
Jan. 18, 2005
Filed:
Mar. 25, 2002
Kaori Odate, Kawasaki, JP;
Motoyoshi Sekiya, Kawasaki, JP;
Ryosuke Goto, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an Raman amplification control apparatus, a plurality of excitation light pulses respectively having a plurality of different wavelengths are generated; and the plurality of excitation light pulses are injected into a predetermined optical transmission line in turn at such timings that the plurality of excitation light pulses do not overlap even after propagation of a predetermined effective length of the predetermined optical transmission line. In addition, the plurality of excitation light pulses may be injected into the predetermined optical transmission line in such an order that the difference between propagation velocities (or wavelengths) of each pair of ones of the plurality of excitation light pulses successively injected into the predetermined optical transmission line is minimized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile