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.:

US 8564876 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 22, 2013

Filed:

Jul. 30, 2012
Applicants:

Maki Hiraizumi, Kawasaki, JP;

Yoshio Shimano, Kawasaki, JP;

Masao Nakata, Kawasaki, JP;

Inventors:

Maki Hiraizumi, Kawasaki, JP;

Yoshio Shimano, Kawasaki, JP;

Masao Nakata, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/29 (2013.01); H04B 10/07 (2013.01); H01S 3/067 (2006.01); H01S 3/10 (2006.01); H01S 3/30 (2006.01); H01S 3/091 (2006.01); H04B 10/291 (2013.01); H04B 10/077 (2013.01);
U.S. Cl.
CPC ...
H01S 3/10015 (2013.01); H01S 3/302 (2013.01); H01S 3/06754 (2013.01); H01S 3/0912 (2013.01); H04B 10/2916 (2013.01); H04B 10/0775 (2013.01);
Abstract

A pumping unit supplies pumping light to a fiber connecting medium; a light monitoring unit detects light power of multiple-wavelength light; and a control unit controls the pumping light based on light power detected by the light monitoring unit and connecting medium information indicating optical characteristics in the connecting medium. The connecting medium information includes information indicating a fiber type of the fiber connecting medium, information indicating a length of the fiber connecting medium, an average fiber loss coefficient of the fiber connecting medium and an intra-station loss value.


Find Patent Forward Citations

Hiraizumi, Maki. (2013). Raman amplifier and raman amplifier adjustment method (U.S. Patent No. 8564876). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8564876

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