Optical power control device, optical power control method, and optical transmission system
AssigneeFujitsu Limited
InventorsKyosuke SONE, Tokuharu KIMURA, Tomohiro YAMAUCHI, Ryu SHINZAKI, Shun OKADA, Motohiko ETO, Shoichiro ODA
Life of this patent
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Abstract
An optical power control device includes a controller configured to: obtain a received waveform of a WDM optical signal transmitted between a plurality of transmission devices via a transmission path, and calculate a power profile of a distance direction of the transmission path based on the received waveform; and calculate a nonlinear SNR of the transmission path based on the power profile.
Claims18
An optical power control device, comprising a controller configured to:
- obtain a received waveform of a WDM optical signal transmitted between a plurality of transmission devices via a transmission path, and calculate a power profile of a distance direction of the transmission path based on the received waveform;
- and
- calculate a nonlinear SNR of the transmission path based on the power profile.
An optical power control method for controlling optical power of a plurality of transmission devices, the optical power control method being executed by a controller and comprising:
- obtaining a received waveform of a WDM optical signal transmitted between the plurality of transmission devices via a transmission path;
- calculating a power profile of a distance direction of the transmission path based on the received waveform;
- calculating a nonlinear SNR of the transmission path based on the power profile.
An optical transmission system, comprising:
- a plurality of transmission devices connected to one another by a transmission path and transmitting and receiving a WDM optical signal transmitted via the transmission path;
- and
- a controller that obtains a received waveform of the WDM optical signal received by one of the plurality of transmission devices, calculates a power profile of a distance direction of the transmission path based on the received waveform, and calculates a nonlinear SNR of the transmission path based on the power profile.
Dependencies are inferred from the claim text.