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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 10 — May. 15, 2014
  • pp: 2884–2887

Demonstration of a Yb3+-doped Lu3Al5O12 ceramic thin-disk laser

Hiroaki Nakao, Akira Shirakawa, Ken-ichi Ueda, Hideki Yagi, Takagimi Yanagitani, Birgit Weichelt, Katrin Wentsch, Marwan Abdou Ahmed, and Thomas Graf  »View Author Affiliations


Optics Letters, Vol. 39, Issue 10, pp. 2884-2887 (2014)
http://dx.doi.org/10.1364/OL.39.002884


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Abstract

Yb:LuAG ceramic is very promising for thin-disk laser and amplifier architectures since it exhibits a higher thermal conductivity at high doping concentrations and a larger emission cross section than Yb:YAG. In this Letter, we present what we believe to be the first demonstration of a thin-disk laser based on Yb:LuAG ceramic. A maximum output power of 101 W with an optical efficiency of 56% and a slope efficiency of 64% was obtained with a multimode laser resonator. Fundamental-mode laser operation with near diffraction limited beam quality (M21.22) was also achieved. The fundamental-mode laser resonator showed the output power of 49 W, an optical efficiency of 31%, and a slope efficiency of 44%. A linearly polarized output beam was demonstrated in multimode operation using an intracavity Brewster window. The depolarization loss was measured to be as low as 0.15% per round trip.

© 2014 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 20, 2014
Revised Manuscript: April 10, 2014
Manuscript Accepted: April 10, 2014
Published: May 8, 2014

Citation
Hiroaki Nakao, Akira Shirakawa, Ken-ichi Ueda, Hideki Yagi, Takagimi Yanagitani, Birgit Weichelt, Katrin Wentsch, Marwan Abdou Ahmed, and Thomas Graf, "Demonstration of a Yb3+-doped Lu3Al5O12 ceramic thin-disk laser," Opt. Lett. 39, 2884-2887 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-10-2884

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