Title:
広帯域WDM光ファイバ伝送システムにおける長波長チャネル制御方式
Document Type and Number:
Japanese Patent JP2004518333
Kind Code:
A
Abstract:
There is provided in an optical amplifier device used for a system in which a power transfer takes place from comparatively short wavelength signal to a comparatively long wavelength signal. The device includes an amplifier stage coupled to an optical transmission medium, a monitor monitoring a status of a first band; and a pump light source unit supplying at least one first pump light to the optical transmission medium on the basis of the status of the first band monitored, so that the above at least one first pump light supplies additional power to longer wavelength channels related to the status of the first band.
Inventors:
Heinberger, liner
Takafumi Terahara
Takafumi Terahara
Application Number:
JP2002557047A
Publication Date:
June 17, 2004
Filing Date:
January 05, 2001
Export Citation:
Assignee:
富士通株式会社
International Classes:
H01S3/06; H01S3/10; H04B10/02; H04B10/17; H04B10/18; H04B10/29; H04J14/00; H04J14/02; H01S3/067; H01S3/102; H01S3/30; (IPC1-7): H04B10/16; H01S3/06; H01S3/10; H04B10/02; H04B10/17; H04B10/18; H04J14/00; H04J14/02
Attorney, Agent or Firm:
Tadahiko Ito