1.4 µm continuous-wave diamond Raman laser

Casula, Riccardo and Penttinen, Jussi-Pekka and Kemp, Alan J. and Guina, Mircea and Hastie, Jennifer E. (2017) 1.4 µm continuous-wave diamond Raman laser. Optics Express, 25 (25). pp. 31377-31383. ISSN 1094-4087 (https://doi.org/10.1364/OE.25.031377)

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Abstract

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.

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