Open Access14 µm continuous-wave diamond Raman laser
Author(s) -
Riccardo Casula,
Jussi-Pekka Penttinen,
Alan J. Kemp,
Mircea Guină,
Jennifer E. Hastie
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.031377
Subject(s) - optics , raman laser , materials science , laser , raman spectroscopy , fabry–pérot interferometer , wavelength , full width at half maximum , optoelectronics , laser pumping , laser power scaling , semiconductor laser theory , raman scattering , physics
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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