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AssigneeFujitsu Limited
InventorsKentaro KAWANISHI, Goji NAKAGAWA, Hiroki OI, Takafumi TERAHARA, Makoto HASEGAWA, Teppei OHATA, Tomohiro YAMAUCHI
Estimating the term…
An optical transmission system transmits an optical signal via a plurality of nodes. A first optical transmission device provided on a first node among the plurality of nodes outputs a wavelength division multiplexed (WDM) signal including a wavelength channel configured to propagate an actual signal and a wavelength channel configured to propagate a pseudo signal. A second optical transmission device provided on a second node among the plurality of nodes includes a wavelength processing circuit configured to terminate the pseudo signal in the WDM signal and to generate a second WDM signal by inserting an add signal and a new pseudo signal into unused wavelength channels of the WDM signal after the pseudo signal is terminated.
An optical transmission system that transmits an optical signal via a plurality of nodes, wherein
An optical transmission device that processes a wavelength division multiplexed (WDM) signal including a wavelength channel configured to propagate an actual signal and a wavelength channel configured to propagate a pseudo signal, the optical transmission device comprising:
Dependencies are inferred from the claim text.