The sliding-frequency guiding filter: an improved form of soliton jitter control.
By gradually translating the peak frequency of guiding filters along its length, we create a fibertransmission line that is substantially opaque to noise while remaining transparent to solitons. This trick allows the use of stronger filters, and hence greater jitter reduction, without incurring the usual penalty of exponentially rising noise from the excess gain required to overcome filterloss.
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Mollenauer
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Gordon
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Evangelides