Title:
EXCITING LIGHT SOURCE FOR RAMAN AMPLIFIER AND RAMAN AMPLIFIER USING THE SAME
Document Type and Number:
Japanese Patent JP3949463
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a Raman amplifier having an arbitrary wavelength characteristic superior in flatness and an arbitrary amplification gain only by independently changing the light intensity of a short wavelength side group and the light intensity of a long wavelength side group.
SOLUTION: In an exciting light source for Raman amplification, a plurality of exciting light beams for Raman-amplifying signal light inputted to a light transmission line in the light transmission line are outputted. The exciting light source for Raman amplification is divided into the light source of a shot wavelength side and the light source of a long wavelength side, whose oscillation wavelengths differ. They synthesize and output a plurality of oscillation light beams outputted from the light source of the short wavelength side and the oscillation light of the long wavelength side, collectively control a plurality of oscillation light beams outputted from the light source of the short wavelength side or oscillation light outputted from the light source of the long wavelength side, and adjust output light intensity.
Inventors:
Satoko Kadomo
Yoshihiro Emori
Yoshihiro Emori
Application Number:
JP2002025238A
Publication Date:
July 25, 2007
Filing Date:
February 01, 2002
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
G02F1/35; H01S3/10; H01S3/094; H01S3/0941; H01S3/30; H04B10/29; H04B10/294; (IPC1-7): H01S3/094; G02F1/35; H01S3/30; H04B10/16; H04B10/17
Domestic Patent References:
| JP2000098433A | ||||
| JP2001007768A |
Attorney, Agent or Firm:
Masaharu Kobayashi