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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Taizo Maeda0
Date of Patent
June 28, 2011
Patent Application Number
12543858
Date Filed
August 19, 2009
Patent Primary Examiner
Patent abstract
In a wavelength-division multiplexing communications system including a plurality of optical transmission devices having an optical amplifier, downstream optical transmission devices transmit gain wavelength characteristic information of an optical amplifier in each of the downstream optical transmission devices to an upstream optical transmission device. The upstream optical transmission device controls gain wavelength characteristics on the basis of the received gain wavelength characteristic information.
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