Constrained coding techniques for the suppression of intrachannel nonlinear effects in high-speed optical transmission

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

A problem of suppression of intrachannel nonlinearities through the use of constrained coding is considered. Three different techniques are proposed and compared with respect to their efficiency, namely 1) constrained coding; 2) combined constrained and error control coding; and 3) deliberate error insertion. Significant Q-factor improvement up to 16 dB depending on code rate and number of spans is demonstrated. A combined constrained-iterative forward error correction (FEC) scheme can operate in the presence of strong intrachannel nonlinearities when even advanced FEC schemes would be overwhelmed with errors. It provides a coding gain of 12.1 dB at a bit error rate (BER) of 10 -9. Deliberate error insertion is an efficient approach to balance the encoder complexity and the achievable coding gain.

Original languageEnglish (US)
Pages (from-to)411-418
Number of pages8
JournalJournal of Lightwave Technology
Volume24
Issue number1
DOIs
StatePublished - Jan 1 2006

Keywords

  • Constrained coding
  • Intrachannel cross-phase modulation
  • Intrachannel four-wave mixing
  • Optical communications

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Constrained coding techniques for the suppression of intrachannel nonlinear effects in high-speed optical transmission'. Together they form a unique fingerprint.

  • Cite this