Wavelength redundancy device and wavelength redundancy method
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United States of America Patent
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Jan 16, 2018
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app pub date -
Jan 6, 2015
filing date -
Feb 25, 2014
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Abstract
10-Gbps client signals (1a) to (1c) which are processed by a 10-Gbps transponder (3a), a 40-Gbps transponder (3b), and a 100-Gbps transponder (3c), respectively, are branched by optical couplers (2a) to (2c) into an M:N switch (40). The M:N switch (40) selects a client signal to be made redundant from the branched client signals (1a) to (1c) and outputs the selected client signal to a redundancy 100-Gbps transponder (50) having 10-Gbps-based client interfaces.
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