Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2007-03-27
2007-03-27
Leung, Christine (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S152000
Reexamination Certificate
active
10084884
ABSTRACT:
The present invention provides a WDM optical communication system, comprising input means and output means for an optical signal, an optical fibre path connecting signal-transmissively said input and output means, wherein the optical signal is amplified by means of Raman amplification and said optical fibre path comprises at least one Raman amplifier, further comprising WDM means for coupling at least two polarized pump radiation wavelengths with wavelengths less than the signal radiation wavelength into said Raman amplifier, wherein one pump radiation wavelength has a selected different polarization with respect to the polarization of the other pump radiation wavelengths.
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Bigo, et al.: “Tbit/s (128×40 Gbits/s WDM) Transmission Over 3×100 km of TeraLight Fibre” ECOC 2000, 26thEuropean Conference on Optical Communication, Sep. 3-7, 2000 Munich, Germany, vol. 5 Plenary Papers and Tutorials Post-Deadline papers.
Bayart Dominique
Hamoir Dominique
Alcatel
Leung Christine
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