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

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35 Citations (Scopus)

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 2006

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Light transmission
coding
high speed
retarding
Forward error correction
insertion
nonlinearity
Bit error rate
coders
bit error rate
Q factors

Keywords

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

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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.",
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