OPTICAL SIGNAL DIVIDED TRANSMISSION SYSTEM, OPTICAL TRANSMITTER, OPTICAL RECEIVER AND OPTICAL SIGNAL DIVIDED TRANSMISSION METHOD

摘要

PROBLEM TO BE SOLVED: To improve reliability of an optical signal divided transmission system wherein a client signal is divided into N signals at a bit rate of 1/N and transmitted on N pieces of lightwave paths.

SOLUTION: An optical signal divided transmission system includes: a fault determination section 27 which determines the status of lightwave paths for transmitting N divided optical signals; and an error-correcting data transmission mechanism for transmitting error-correcting data λ(P) for the N divided optical signals while using auxiliary lightwave paths provided separately from the lightwave paths for transmitting the N divided optical signals. If a fault occurs on any lightwave path, normal data and the correcting data λ(P) are used to carry out error correction.

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