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:
Jun. 29, 2010
Filed:
Oct. 30, 2006
Naoaki Machida, Tokyo, JP;
Shinji Iio, Tokyo, JP;
Morio Wada, Tokyo, JP;
Daisuke Hayashi, Tokyo, JP;
Shinji Kobayashi, Tokyo, JP;
Masayuki Suehiro, Tokyo, JP;
Katsuya Ikezawa, Tokyo, JP;
Akira Miura, Tokyo, JP;
Sadaharu Oka, Tokyo, JP;
Chie Sato, Tokyo, JP;
Mamoru Hihara, Tokyo, JP;
Tsuyoshi Yakihara, Tokyo, JP;
Shinichi Nakajima, Tokyo, JP;
Naoaki Machida, Tokyo, JP;
Shinji Iio, Tokyo, JP;
Morio Wada, Tokyo, JP;
Daisuke Hayashi, Tokyo, JP;
Shinji Kobayashi, Tokyo, JP;
Masayuki Suehiro, Tokyo, JP;
Katsuya Ikezawa, Tokyo, JP;
Akira Miura, Tokyo, JP;
Sadaharu Oka, Tokyo, JP;
Chie Sato, Tokyo, JP;
Mamoru Hihara, Tokyo, JP;
Tsuyoshi Yakihara, Tokyo, JP;
Shinichi Nakajima, Tokyo, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
An optical communication apparatus includes an erbium-doped optical fiber amplifier for amplifying a modulated optical signal, wherein a light which is not modulated is inputted to the erbium-doped optical fiber amplifier together with the optical signal.