Noise Performance and Long-Term Stability of Near- and Mid-IR Gas-Filled Fiber Raman Lasers

Yazhou Wang, Abubakar Adamu, Manoj Kumar Dasa, Jose Enrique Antonio-Lopez, Md Selim Habib, Rodrigo Amezcua Correa, Ole Bang, Christos Markos

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Stimulated Raman scattering (SRS) enabled by the emerging gas-filled low-loss anti-resonant hollow-core fiber (ARHCF) technology opens up a competitive way towards the development of novel lasers in the molecular fingerprint region. In this article, the characteristics of noise and long-term stability of near- and mid-infrared (near-IR and mid-IR) gas-filled fiber Raman lasers have been investigated for the first time. The results reveal that an increase in Raman pulse energy is associated with a decrease in noise, and that the relative pulse peak intensity noise (RIN) is always lower than the relative pulse energy noise (REN). We also demonstrate that long-term drift of the pulse energy and peak power are directly linked with the high amount of heat release during the Raman Stokes generation. The demonstrated noise and long-term stability performance provide necessary references for potential spectroscopic applications as well as further improvements of the emerging infrared gas-filled ARHCF Raman laser technology.
Original languageEnglish
JournalJournal of Lightwave Technology
Issue number11
Pages (from-to)3560-3567
Publication statusPublished - 2021


  • Laser stability
  • Laser noise
  • Raman lasers
  • Optical pump lasers


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