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. 08, 2011
Filed:
May. 30, 2008
Hiroshi Nagaeda, Sapporo, JP;
Yoichi Oikawa, Sapporo, JP;
Noriyasu Shiga, Sapporo, JP;
Yoshiaki Horiuchi, Sapporo, JP;
Hiroshi Nagaeda, Sapporo, JP;
Yoichi Oikawa, Sapporo, JP;
Noriyasu Shiga, Sapporo, JP;
Yoshiaki Horiuchi, Sapporo, JP;
Trimatiz Ltd., Chiba, JP;
Abstract
A high-speed optical amplifier is considered to be an important optical device because of an increasing demand of routing, which is accompanied by an increase in complexity of networks. It is difficult to satisfy a response performance by related-art techniques, and there has been a problem in achieving a high-speed response performance of 10 microseconds or less. An optical amplifier according to the present invention includes: an input monitor means; an optical amplification meansincluding an optical amplification medium, and a control meansfor performing feed-forward control. When the optical amplification means is controlled by the feed-forward control in response to a signal of the input monitor means, an overshoot signal is applied as a control signal so that a slow response performance specific to the optical amplification medium has been improved, and thereby high-speed response performance has been achieved.