6.8 W all-fiber supercontinuum source at 1.9-2.5 μm

V. V. Dvoyrin, I. T. Sorokina

Research output: Contribution to journalArticlepeer-review


We report a simple method of generating a spectrally flat and high average power spectral density (up to 14 mW/nm) optical supercontinuum in the 1.95-2.5 μm range covering a transparency window of the atmosphere. The supercontinuum was generated from the Tm-doped all-fiber MOPA lasers. The average output power of the picosecond linear-cavity SESAM mode-locked seed lasers operating at 46 and 77 MHz was as low as 6.7 and 2.6 mW, respectively. The corresponding one-stage silica-based fiber amplifier generated a supercontinuum with 5.06 and 6.83 W average power, 550 and 500 nm bandwidths at -10 dB level, and 5 and 8 dB spectral flatness, respectively.

Original languageEnglish
Article number085108
JournalLaser Physics Letters
Issue number8
Publication statusPublished - 23 Jun 2014


  • mid-infrared lasers
  • mode-locked fiber lasers
  • optical supercontinuum
  • Raman solitons


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