Generation of 1.7-μJ pulses at 1.55μm by a self-modelocked all-fiber laser with a kilometers-long linear-ring cavity

B.N. Nyushkov, V.I. Denisov, S.M. Kobtsev, V.S. Pivtsov, N.A. Kolyada, A.V. Ivanenko, S.K. Turitsyn

Research output: Contribution to journalArticle

Abstract

We report on the record-high pulse energy of nearly 1.7 μJ obtained directly from a self-mode-locked all-fiber erbium laser with a linear-ring cavity owing its extreme elongation up to several kilometers. Specially selected telecommunication fibers, providing large normal net cavity dispersion in the vicinity of 1.55 μm, have been used for this purpose. Along with compensation for polarization instability in the longer linear arm of the cavity, such approach has ensured stable wavebreaking- free mode-locked lasing with an ultra-low pulse repetition rate of 35.1 kHz.

Original languageEnglish
Pages (from-to)661-665
Number of pages5
JournalLaser Physics Letters
Volume7
Issue number9
DOIs
Publication statusPublished - 30 Jun 2010

Keywords

  • high-energy pulses
  • linear-ring cavity
  • mode-locked laser
  • normal dispersion
  • ultralow repetition rate

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