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 7499212 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 03, 2009

Filed:

Feb. 24, 2006
Applicant:

Kazunari Tsubaki, Kawasaki, JP;

Inventor:

Kazunari Tsubaki, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/17 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical amplifier is disclosed that includes an input monitoring part configured to monitor an input wavelength division multiplexed light; an amplification part configured to amplify and output the input wavelength division multiplexed light; an output monitoring part configured to monitor the wavelength division multiplexed light output from the amplification part; a gain control part configured to perform gain control so that the ratio of output light intensity monitored by the output monitoring part to input light intensity monitored by the input monitoring part is constant; and a response speed switching part configured to switch the response speed of the gain control.


Find Patent Forward Citations

Tsubaki, Kazunari. (2009). Optical amplifier (U.S. Patent No. 7499212). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7499212

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