Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2007-07-17
2007-07-17
Keith, Jack (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
C398S037000
Reexamination Certificate
active
10695398
ABSTRACT:
In a WDM optical communication system in which an optical lossy medium, optical amplifiers and Raman amplifiers for compensating for loss in the optical lossy medium are cascade-connected, means are provided for acquiring the state of use of a Raman amplifier, at a node the same as that of the optical amplifier, in a link opposing a link in which the optical amplifier resides, or the state of use of a Raman amplifier at a node downstream of the optical amplifier. Whether the optical amplifier is to be made to perform a slope correction is decided based upon the state of use of the Raman amplifier.
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Diacou Ari M.
Fujitsu Limited
Keith Jack
Staas & Halsey , LLP
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