Optical amplifying device and optical transmission system
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United States of America Patent
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Dec 30, 2014
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app pub date -
Aug 30, 2012
filing date -
Nov 15, 2011
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Abstract
An optical amplifying device includes an optical amplification medium configured to be excited by excitation light and amplify signal light, a light loss detector configured to detect a light loss of an optical component optically connected to the optical amplification medium in the amplifying device, and a noise figure deterioration detector configured to detect, based on the light loss detected by the light loss detector, deterioration of a noise figure of the optical amplification medium.
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