Diode Pumped Active-Mirror Yb:YAG Ceramic Lasers¹

X. J. Cheng^a, *, B. X. Jiang^b, L. Li^a, J. L. Wang^a, Zh. G. Yang^a, W. B. Cheng^a,
X. Ch. Shi^a, and Y. B. Pan^b

^a Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800 China

^b Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800 China

*e-mail: xjcheng@siom.ac.cn

Received October 25, 2011; in final form, October 28, 2011; published online March 6, 2012

Abstract—Lasers from Yb:YAG ceramic at different temperature were reported in this paper. The Yb:YAG
ceramic laser with active-mirror structure was end-pumped by a laser diode whose central wavelength was
940nm. At 80 K, with doping concentration of 5 at % Yb:YAG ceramic slab, output energy of 0.68 J at 10 Hz
repetition rate was obtained under the pump energy of 2.49 J, corresponding to a slope efficiency of 40% and a
conversion efficiency of 27.3%, respectively.

DOI: 10.1134/S1054660X12040020

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