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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 3040–3043

Dysprosium-doped PbGa2S4 laser generating at 4.3 μm directly pumped by 1.7 μm laser diode

Helena Jelínková, Maxim E. Doroshenko, Michal Jelínek, Jan Šulc, Vyacheslav V. Osiko, Valerii V. Badikov, and Dmitrii V. Badikov  »View Author Affiliations


Optics Letters, Vol. 38, Issue 16, pp. 3040-3043 (2013)
http://dx.doi.org/10.1364/OL.38.003040


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Abstract

In this Letter, we demonstrate the pulsed and CW operation of the Dy:PbGa2S4 laser directly pumped by the 1.7 μm laser diode. In the pulsed regime (pulse duration 5 ms; repetition rate 20 Hz), the maximum mean output power of 9.5 mW was obtained with the slope efficiency of 9.3% with respect to the absorbed pump power. The generated wavelength was 4.32 μm, and the laser beam cross section was approximately Gaussian on both axes. Stable CW laser generation was also successfully obtained with the maximum output power of 67 mW and the slope efficiency of 8%. Depopulation of the lower laser level by 1.7 μm pump radiation absorption followed by 1.3 μm upconversion fluorescence was demonstrated. These results show the possibility of construction of the compact diode-pumped solid-state pulsed or CW laser generating at 4.3 μm in the power level of tens mW operating at room temperature.

© 2013 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 29, 2013
Revised Manuscript: July 10, 2013
Manuscript Accepted: July 15, 2013
Published: August 8, 2013

Citation
Helena Jelínková, Maxim E. Doroshenko, Michal Jelínek, Jan Šulc, Vyacheslav V. Osiko, Valerii V. Badikov, and Dmitrii V. Badikov, "Dysprosium-doped PbGa2S4 laser generating at 4.3 μm directly pumped by 1.7 μm laser diode," Opt. Lett. 38, 3040-3043 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-16-3040


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References

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