Invention Application
- Patent Title: Optical amplification device, raman amplifier, optical wavelength-division multiplex transmission system and optical wavelength-division multiplex transmission method
- Patent Title (中): 光放大装置，拉曼放大器，光波分复用传输系统和光波分复用传输方法
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Application No.: US10995277Application Date: 2004-11-24
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Publication No.: US20060044646A1Publication Date: 2006-03-02
- Inventor: Yoshihiro Shimizu
- Applicant: Yoshihiro Shimizu
- Applicant Address: JP Kawasaki
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki
- Priority: JP2004-246864 20040826
- Main IPC: H01S3/00
- IPC: H01S3/00
Abstract:
The optical amplification device disposed in an optical transmission line for transmitting a plurality of segments of signal light each with a different wavelength comprises a first optical amplifier disposed in the optical transmission line, an optical power monitor unit provided in the down stream of the first optical amplifier in order to control the first optical amplifier, and a second optical amplifier, disposed between the first optical amplifier and the optical power monitor unit, capable of variably controlling the amplification band and absorption band of light.
Information query
