Wavelength diversification of high-power external cavity diamond Raman lasers using intracavity harmonic generation

Hadiya Jasbeer, Robert J. Williams, Ondrej Kitzler, Aaron McKay, Richard P. Mildren*

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)


We report a high power quasi-continuous-wave (QCW) 620 nm laser from an external cavity diamond Raman laser utilizing intracavity frequency doubling in lithium triborate. Output power of 30 W for durations of 0.25 ms at 15% conversion effciency was achieved with a beam quality factor M2 = 1.1 from a free-running Nd:YAG pump laser of M2 = 1.5. The critical design parameters that affect conversion effciency and power were analysed with the aid of an analytical model. By adaptation to other pump technologies, the diamond approach provides a novel pathway towards high brightness CW beam generation in the visible and ultraviolet regions.

Original languageEnglish
Pages (from-to)1930-1941
Number of pages12
JournalOptics Express
Issue number2
Publication statusPublished - 22 Jan 2018



  • Lasers, Raman
  • Nonlinear optical materials
  • Raman effect
  • Lasers and laser optics
  • Visible lasers
  • Harmonic generation and mixing
  • Nonlinear optics, devices

Cite this