Raman optical amplifier, optical transmission system using...

Details Raman optical amplifier, optical transmission system using... Raman optical amplifier, optical transmission system using...

2007-07-17

2007-07-17

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

Reexamination Certificate

active

10873232

ABSTRACT:
An amplification medium is inputted thereto first lights and second lights, polarizations of which are orthogonal. A pumping means inputs first pump lights coinciding with the polarization of the first lights, and second pump lights coinciding with the polarization of the second lights to the amplification medium. The gain of a wavelength or wavelength band of a certain light can be efficiently controlled, simply and independently, without affecting the other wavelengths or wavelength bands.

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patent: 6414786 (2002-07-01), Foursa
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patent: 6970650 (2005-11-01), Kajiya et al.
patent: 2002/0044335 (2002-04-01), Islam et al.
patent: 2002/0075560 (2002-06-01), Foursa
patent: 2003/0053199 (2003-03-01), Akasaka et al.
patent: 2003/0058899 (2003-03-01), Islam
patent: 2001-44934 (2001-02-01), None
patent: 2003-86871 (2003-03-01), None
patent: WO 00/49721 (2000-08-01), None
patent: WO 03/017537 (2003-02-01), None

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