Optical transmission system, optical transmission apparatus, and optical transmission method
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United States of America Patent
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Nov 21, 2017
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N/A
app pub date -
Mar 1, 2016
filing date -
Mar 3, 2015
priority date (Note) -
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Abstract
An optical transmission system includes a first optical transmission apparatus that adds a plurality of error correction codes to a main signal, retrieves, from a first error correction code that is added to the main signal and that corresponds to a first sub-carrier among the plurality of sub-carriers, a first code portion in excess of a predetermined redundancy level, distributes the first code portion to a second sub-carrier among the plurality of sub-carriers, concatenates a second code portion into the first error correction code, and transmits an optical signal including the main signal multiplexed with the first error correction code that has been concatenated with the second code portion.
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