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AssigneeSumitomo Electric Industries, Ltd.
InventorsToshiaki Okuno, Eisuke Sasaoka, Masayuki Nishimura, Shigeru Tanaka
Estimating the term…
Disclosed are an optical transmission system and a Raman amplifying control unit that can stabilize the effective loss of a transmission line even if the optical transmission system has a relay station between a transmitting station and a receiving station. The optical transmission system and the Raman amplifying control unit have an introducing means for outputting inspection light and introducing it to the transmission line, a receiving means for receiving the back-scatter from the inspection light, and a control means for inspecting the transmission line and controlling an exciting light supplying means according to the received backscattering light. The introducing means, the receiving means, and the control means are provided together with the exciting light supplying means in a station at the transmitting side or receiving side of a relay section in the optical transmission system.
A Raman amplifying control unit which can control an exciting light supply means for supplying pump light into an optical transmission line so as to Raman amplify signal light in the optical transmission line of an optical transmission system having at least one relay station, said Raman amplifying control unit being equipped with:
An optical transmission system including at least one relay station, which is provided with:
Dependencies are inferred from the claim text.