Nonlinear noise suppression in a high-rate optical channel with phase modulation and dispersion compensation

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Abstract

We have performed a numerical simulation of transmission of optical DP QPSK signals at a rate of 40 Gbaud over a distance of 2000 km. It is shown that a channel with large negative dispersion and preliminary large positive pulse chirping significantly reduces nonlinear distortion and improves the signal quality. To further reduce the probability of recognition error, it is proposed, instead of a negative dispersion fibre, to use compensators with low attenuation.

Original languageEnglish
Pages (from-to)184-186
Number of pages3
JournalQuantum Electronics
Volume50
Issue number2
DOIs
Publication statusPublished - 1 Feb 2020

Keywords

  • fibre-optic communication lines
  • mathematical simulation
  • nonlinear Schrodinger equation
  • chromatic dispersion
  • 100 GBIT S(-1)

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