Title:
光増幅装置および光増幅方法ならびに光通信システム
Document Type and Number:
Japanese Patent JP4689015
Kind Code:
B2
Abstract:
An optical amplifying apparatus of the present invention comprises a correction part for correcting a predetermined fixed value of an output optical level by a correction amount according to an optical power of amplified spontaneous emission (ASE). The correction amount is, for example, computed by predetermined formulas. According to the present invention, when a WDM optical signal is optically amplified, the output is fixedly amplified for each channel by the correction amount which is a value obtained with the ASE levels taken into consideration, so that a fluctuation in the level of the average optical power of the channels is suppressed even if an optical signal is dropped/added therefrom/thereto during repeated transmissions.
Inventors:
Makoto Murakami
Motoyoshi Sekiya
Saito Hideto
Hiroro Tomofuji
Tsuyoshi Sakamoto
Kazuo Yamane
Motoyoshi Sekiya
Saito Hideto
Hiroro Tomofuji
Tsuyoshi Sakamoto
Kazuo Yamane
Application Number:
JP2000245695A
Publication Date:
May 25, 2011
Filing Date:
August 14, 2000
Export Citation:
Assignee:
富士通株式会社
International Classes:
H01S3/10; H04J14/00; H01S3/06; H01S3/067; H04B10/07; H04B10/077; H04B10/079; H04B10/2543; H04B10/29; H04B10/296; H04J14/02; H01S3/094
Domestic Patent References:
| JP2000106464A | ||||
| JP11112434A | ||||
| JP9326519A | ||||
| JP9321701A | ||||
| JP9153865A | ||||
| JP8255940A | ||||
| JP8248455A | ||||
| JP8139672A |
Attorney, Agent or Firm:
Furuya Fumio