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:
Apr. 12, 2005
Filed:
Jul. 11, 2002
Applicants:
Yasuhiko Aoki, Richardson County, TX (US);
Susumu Kinoshita, Plano, TX (US);
Inventors:
Yasuhiko Aoki, Richardson County, TX (US);
Susumu Kinoshita, Plano, TX (US);
Assignee:
Fujitsu Network Communications, Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S003/00 ; H04B010/20 ;
U.S. Cl.
CPC ...
Abstract
An optical ring is operable to transport traffic signals between nodes. A Raman pump source is coupled to the optical ring. The Raman pump source is operable to provide pump power to at least a portion of the optical fiber ring. Each node comprises an optical splitter operable to at least passively drop traffic to the optical fiber ring. Each node further comprises a pump filter operable to separate at the node the pump power from traffic signals.