Raman amplification control method, optical communication...

Optical: systems and elements – Optical amplifier – Raman or brillouin process

Reexamination Certificate

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Reexamination Certificate

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07106499

ABSTRACT:
Power of signal light injected to a Raman amplification medium is measured or estimated by calculation and ratio of the gain between forward pump light and backward pump light is controlled according to the result of the measurement or calculation. Wavelengths used in the forward pumping are optimally allocated.

REFERENCES:
patent: 6417959 (2002-07-01), Bolshtyansky et al.
patent: 6512628 (2003-01-01), Terahara et al.
patent: 6611370 (2003-08-01), Namiki et al.
patent: 6624926 (2003-09-01), Hayashi et al.
patent: 6624927 (2003-09-01), Wong et al.
patent: 6687049 (2004-02-01), Sulhoff et al.
patent: 6739727 (2004-05-01), Sekiya
patent: 6775055 (2004-08-01), Tsuzaki et al.
patent: 6785042 (2004-08-01), Onaka et al.
patent: 6798567 (2004-09-01), Feldman et al.
patent: 2002/0024723 (2002-02-01), Sekiya et al.
patent: 2004/0156095 (2004-08-01), Tsuzaki et al.
patent: 2000-98433 (2000-04-01), None
patent: 2000-314902 (2000-11-01), None
patent: 2000-330145 (2000-11-01), None
patent: 2001-7768 (2001-01-01), None
P.B. Hansen, et al., “Rayleigh Scattering Limitations in Distributed Raman Pre-Amplifiers,” Jan. 1998, IEEE Photonics Technology Letters, pp. 161, vol. 10, No. 1.
H. Suzuki, et al., “Seamless 32×10 Gb/s transmission over 320 km of 1.55 μm dispersion-shifted fiber using wavelengths ranging from 1546 nm to 1587 nm,” NTT Optical Network Systems Laboratories, p. 221-223, no date.

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