Techniques for High-Speed Implementation of Nonlinear Cancellation

  title={Techniques for High-Speed Implementation of Nonlinear Cancellation},
  author={Sanjay Kasturia and Jack H. Winters},
  journal={IEEE Journal on Selected Areas in Communications},
Nonlinear cancellation (NLC) can significantly reduce intersymbol interference (ISI) in long-haul direct-detection fiber-optic systems, and can thereby more than double the dispersion-limited data rate and/or distance. The IS1 reduction by NLC is achieved by subtracting the interference caused by previously detected symbols; this subtraction, however, requires previous decisions to be fed back to the decision element, and delays in the feedback loop can severely limit the maximum data rate of a… CONTINUE READING
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