Performance optimization of ultra-long Raman laser cavities for quasi-lossless transmission links

V. Karalekas*, Juan D. Ania-Castañón, J. Pérez-González, Xianfeng F. Chen, Lin Zhang, Paul Harper

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Performance optimization of ultra-long Raman laser links is studied theoretically and experimentally. We demonstrate that it is possible to reduce the signal power excursion by adjusting FBG reflectivity without compromising pump efficiency. Furthermore, we experimentally demonstrate an OSNR improvement of 4.3 dB in our system after 4000 km transmission by switching from conventional erbium-doped fibre amplifiers to quasi-lossless transmission. © 2007 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)214-218
Number of pages5
JournalOptics Communications
Volume277
Issue number1
DOIs
Publication statusPublished - 1 Sep 2007

Keywords

  • performance optimization
  • ultra-long Raman laser links
  • signal power excursion
  • FBG reflectivity
  • pump efficiency
  • OSNR improvement
  • erbium-doped fibre amplifiers
  • quasi-lossless transmission

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