Fujitsu Corporation

Denis Daniel Leclair

Robert William Keys

John B Mills

Jean V E Ouellet

Douglas J Greenwood

Sean D L McVeigh

Kevan Peter Jones

Kevan P Jones

A system and method for selecting ghost channels in an optical communication system, including components configured to examine an optical communication channel within a node of the optical communication system, examine a neighbor channel of the optical communication channel, determine whether using the neighbor channel as a ghost channel will create an undesirable level of risk of feedback within the optical communication system, if using the neighbor channel as a ghost channel will not create an undesirable level of risk of feedback, determine whether the neighbor channel is currently used as a ghost channel, and if the neighbor channel is not currently used as a ghost channel, select the neighbor channel as a ghost channel.

System and method for selection of ghost channels for mitigating polarization hole burning

A system and method for managing the selection of ghost channels in an optical communication system, including components configured to collect one or more first data values indicating the validity of an optical communication channel within a first degree of a node in the optical communication system, collect one or more second data values indicating the optical power level of the optical communication channel, transmit the first and second data values to a second degree of the node, receive the first and second data values at the first degree, and aggregate the first and second data values for the first degree and the second degree at the first degree.

System and method for managing the selection of ghost channels for mitigating polarization hole burning

A system for mitigating the effects of polarization hole burning in an optical communication system. The system includes an optical input signal comprising one or more traffic channels, a measurement module configured to check for the existence of ghost channels around the traffic channels, and a ghost channel generation module configured to generate a ghost channel around the traffic channels from amplified spontaneous emission noise of the optical input signal.

System and method for mitigating polarization hole burning

A system and method for optimizing the selection of ghost channels to mitigate the effects of polarization hole burning in a node of an optical communication system including identifying an optical communication channel in the node for use as a ghost channel, identifying a first set of degrees carrying the optical communication channel within the node, identifying a second set of degrees within the first set of degrees, the second set containing the degrees with the optical communication channel being a valid channel, identifying a third set of degrees within the first set of degrees, the third set containing degrees with the optical communication channel being sufficiently powerful, and selecting a first degree to source the ghost channel from the first set of degrees based at least on the second set of degrees and the third set of degrees.

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Kanata, Canada

Denis Daniel Leclair