Perturbation-based FEC-assisted Iterative Nonlinearity Compensation for WDM Systems

Edson Porto da Silva*, Metodi Plamenov Yankov, Francesco Da Ros, Toshio Morioka, Leif Katsuo Oxenloewe

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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A perturbation-based nonlinear compensation scheme assisted by a feedback from the forward error correction (FEC) decoder is numerically and experimentally investigated. It is shown by numerical simulations and transmission experiments that a feedback from the FEC decoder enables improved compensation performance, allowing the receiver to operate very close to the full data-aided performance bounds. The experimental analysis considers the dispersion uncompensated transmission of a 532 GBd WDM system with DP-16QAM and DP-64QAM after 4200 km and 1120 km, respectively. The experimental results show that the proposed scheme outperforms single-channel digital backpropagation.

Original languageEnglish
JournalJournal of Lightwave Technology
Issue number3
Pages (from-to)875-881
Publication statusPublished - 1 Jan 2018


  • Decoding
  • Digital Backpropagation
  • Digital Signal Processing
  • Forward error correction
  • Iterative decoding
  • Kerr Nonlinearities
  • Nonlinear distortion
  • Receivers
  • Wavelength division multiplexing

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