OPTICAL TRANSMISSION SYSTEM, PUMP-LIGHT SUPPLY CONTROL METHOD, AND PUMP LIGHT SUPPLY APPARATUS
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
Sep 13, 2012
filing date -
Nov 15, 2011
priority date (Note) -
Abandoned
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Abstract
An optical transmission system for communicating between transmission devices includes a first pump light source that supplies a first pump light, a second pump light source that supplies a second pump light, an optical transmission line that propagates an optical signal between the transmission devices, and a plurality of couplers that form a plurality of zones in the transmission line, the first pump light source and the second pump light source being optically connected to different couplers of the plurality of couplers, the second pump light Raman-amplifying the first pump light in a zone in which the second pump light is input in the transmission line.
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