270-km ultralong raman fiber laser

Sergei K. Turitsyn, Juan D. Ania-Castañón, S.A. Babin, V Karalekas, Paul Harper, D. Churkin, S.I. Kablukov, Atalla El-Taher, E.V. Podivilov, Vladimir Mezentsev

Research output: Contribution to journalArticlepeer-review


We analyze the physical mechanisms limiting optical fiber resonator length and report on the longest ever laser cavity, reaching 270 km, which shows a clearly resolvable mode structure with a width of ~120??Hz and peak separation of ~380Hz in the radio-frequency spectrum.
Original languageEnglish
Article number133901
Pages (from-to)133901
Number of pages1
JournalPhysical Review Letters
Issue number13
Publication statusPublished - 21 Sept 2009

Bibliographical note

© 2009 The American Physical Society


  • photonics
  • ultralong raman fibre laser
  • optical fibres


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