Nonlinear Performance of Few-Mode Fiber Links with Intermediate Coupling

Research output: Contribution to journalArticle

Abstract

This paper reviews and extends the study of nonlinear performance of few-mode fiber links operating in all different linear coupling regimes for different mode delay maps. Nonlinear performance was estimated using the four-wave-mixing theory and the split-step Fourier method including semi-analytical solutions for linear mode coupling of arbitrary strength. The optimum link configurations minimizing the nonlinear penalty at practical levels of training sequence length are presented, including: the required coupling strength to give nonlinear distortion below that of the single-mode propagation without mode coupling, and the impact of mode delay maps. Finally, different approximate solution methods of the multimode nonlinear Schr-dinger equation are compared, highlighting the accuracy of a stochastic solution method including distributed linear mode coupling.
Original languageEnglish
Article number8558561
Pages (from-to)989 - 999
Number of pages11
JournalJournal of Lightwave Technology
Volume37
Issue number3
Early online date4 Dec 2018
DOIs
Publication statusPublished - 1 Feb 2019

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coupled modes
fibers
propagation modes
penalties
four-wave mixing
education
configurations

Bibliographical note

© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Funding: This work has been partially supported by the European Union
(Grants 654809-HSPACE, and 659950-INVENTION), and by the EPSRC
(Grant EP/L000091/1-PEACE and EP/R024057/1-FPA-ROCS)

Keywords

  • Few-mode fiber
  • fiber nonlinearity
  • linear mode coupling
  • mode-division multiplexing

Cite this

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abstract = "This paper reviews and extends the study of nonlinear performance of few-mode fiber links operating in all different linear coupling regimes for different mode delay maps. Nonlinear performance was estimated using the four-wave-mixing theory and the split-step Fourier method including semi-analytical solutions for linear mode coupling of arbitrary strength. The optimum link configurations minimizing the nonlinear penalty at practical levels of training sequence length are presented, including: the required coupling strength to give nonlinear distortion below that of the single-mode propagation without mode coupling, and the impact of mode delay maps. Finally, different approximate solution methods of the multimode nonlinear Schr-dinger equation are compared, highlighting the accuracy of a stochastic solution method including distributed linear mode coupling.",
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Nonlinear Performance of Few-Mode Fiber Links with Intermediate Coupling. / Ferreira, Filipe; Sánchez, Christian; Sygletos, Stylianos; Ellis, Andrew D.

In: Journal of Lightwave Technology, Vol. 37, No. 3, 8558561, 01.02.2019, p. 989 - 999.

Research output: Contribution to journalArticle

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