Generation of high-energy soliton-like pulses in 1.9–2.5 µ m spectral domain

Vladislav V Dvoyrin*, Sergei K Turitsyn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Abstract: We experimentally demonstrate the generation of soliton-like pulses with 195–230 fs duration and energy up to 20 nJ in the spectral region of 1.9–2.5 µm directly from the Tm-doped all-fiber MOPA laser. The emerged Raman solitons generated directly in the fiber amplifier exhibit unusual dynamics and spectral properties forming a supercontinuum without conventional gaps between Stokes pulses. Namely, at the output powers above 2 W, in addition to conventional soliton spectral peaks beyond 2.3 μm, we observe high spectral density over an extended range of 1.95–2.23 μm corresponding to a coherent structure that to the best of our knowledge differs from any previously observed supercontinuum regimes. The average optical power of the fiber laser is at the 3-W level, whereas the estimated peak power reached the 80-kW level. Such a relatively simple laser system with high spectral density is a promising light source for various applications ranging from advanced comb spectroscopy to ultra-fast photonics.
Original languageEnglish
Article number044005
JournalJournal of Physics: Photonics
Issue number4
Publication statusPublished - 1 Oct 2020

Bibliographical note

Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

Funding: This work was supported by the Russian Science Foundation (Grant No. 17-72-30006).


  • Fiber amplifiers
  • Mode-locked fiber lasers
  • Optical supercontinuum
  • Solitons


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