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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 11 — Jun. 1, 2013
  • pp: 1966–1968

Yb:CaGdAlO4 thin-disk laser with 70% slope efficiency and 90 nm wavelength tuning range

Kolja Beil, Bastian Deppe, and Christian Kränkel  »View Author Affiliations


Optics Letters, Vol. 38, Issue 11, pp. 1966-1968 (2013)
http://dx.doi.org/10.1364/OL.38.001966


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Abstract

Thin-disk laser experiments with Yb:CaGdAlO4 (Yb:CALGO) have been performed. A slope efficiency of 70% and an optical-to-optical efficiency of 57% could be achieved with a maximum output power of 30.7 W. These are so far the highest efficiencies obtained with this material. Furthermore, tuning experiments were carried out leading to a tuning range of 90 nm in total and 50 nm with more than 20 W of output power. This is to the best of our knowledge the widest wavelength tuning range of any material demonstrated at this power level. For all experiments the thermal evolution of the crystal surface temperature during laser operation was investigated.

© 2013 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3600) Lasers and laser optics : Lasers, tunable
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 16, 2013
Revised Manuscript: May 3, 2013
Manuscript Accepted: May 3, 2013
Published: May 30, 2013

Citation
Kolja Beil, Bastian Deppe, and Christian Kränkel, "Yb:CaGdAlO4 thin-disk laser with 70% slope efficiency and 90 nm wavelength tuning range," Opt. Lett. 38, 1966-1968 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-11-1966

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