1.6 W continuous-wave Raman laser using low-loss synthetic diamond

Walter Lubeigt, Vasili G. Savitski, Gerald M. Bonner, Sarah L. Geoghegan, Ian Friel, Jennifer E. Hastie, Martin D. Dawson, David Burns, Alan J. Kemp

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Low-birefringence (Δn<2x10−6), low-loss (absorption coefficient <0.006cm−1 at 1064nm), single-crystal, synthetic diamond has been exploited in a CW Raman laser. The diamond Raman laser was intracavity pumped within a Nd:YVO4 laser. At the Raman laser wavelength of 1240nm, CW output powers of 1.6W and a slope efficiency with respect to the absorbed diode-laser pump power (at 808nm) of ~18% were measured. In quasi-CW operation, maximum on-time output powers of 2.8W (slope efficiency ~24%) were observed, resulting in an absorbed diode-laser pump power to the Raman laser output power conversion efficiency of 13%.
Original languageEnglish
Pages (from-to)6938-6944
Number of pages7
JournalOptics Express
Issue number7
Early online date25 Mar 2011
Publication statusPublished - 28 Mar 2011


  • raman
  • lasers
  • laser optics
  • optical materials


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