Raman amplifying device and raman amplifying system

Details Raman amplifying device and raman amplifying system Raman amplifying device and raman amplifying system

2006-06-06

2006-06-06

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

C359S337100, C359S337400

Reexamination Certificate

active

07057800

ABSTRACT:
A Raman amplifying device includes a plurality of Raman amplifiers having a gain wavelength characteristic with a gain peak at which an amplification gain becomes the largest, including a first Raman amplifier having a gain wavelength characteristic with a plurality of gain peaks including a first gain peak and a second gain peak adjacent to the first gain peak; a second Raman amplifier having a gain wavelength characteristic with at least one gain peak including a third gain peak between the first gain peak and the second gain peak; and a third Raman amplifier having a gain wavelength characteristic with a fourth gain peak between the first gain peak and the third gain peak, the fourth gain peak forming an arithmetic sequence between the first gain peak and the third gain peak.

REFERENCES:
patent: 6556341 (2003-04-01), Krummrich et al.
patent: 6738180 (2004-05-01), Hirasawa et al.
patent: 6862135 (2005-03-01), Evans et al.
patent: 1 170 888 (2002-01-01), None
patent: 1 187 276 (2002-03-01), None
patent: WO 00/49721 (2000-08-01), None
Toshiki Tanaka, et al., “Gain-Flattened Raman Amplification Scheme for WDM Transmission”, Optical Amplifiers and There Application, Jul. 2001, OTuA3-1-OTuA3-3.

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