1.4 µm continuous-wave diamond Raman laser

Riccardo Casula, Jussi-Pekka Penttinen, Alan J. Kemp, Mircea Guina, Jennifer E. Hastie

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The longest wavelength (~1.4 µm) emitted by a diamond Raman laser pumped by a semiconductor disk laser (SDL) is reported. The output power of the intracavity-pumped Raman laser reached a maximum of 2.3 W with an optical conversion efficiency of 3.4% with respect to the absorbed diode pump power. Narrow Stokes emission (FWHM <0.1 nm) was attained using etalons to limit the fundamental spectrum to a single etalon peak. Tuning of the Raman laser over >40 nm was achieved via rotation of an intracavity birefringent filter that tuned the SDL oscillation wavelength.
Original languageEnglish
Pages (from-to)31377-31383
Number of pages6
JournalOptics Express
Issue number25
Early online date1 Dec 2017
Publication statusPublished - 11 Dec 2017


  • optically pumped semiconductor disk lasers
  • Raman laser
  • diamond


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