Open AccessSpectral characterization and laser performance of a mixed crystal Nd:(Lu_xY_1-x)_3Al_5O_12
Author(s) -
Xiaodong Xu,
S. S. Cheng,
Junqing Meng,
Dongzhen Li,
Danhong Zhou,
Lihe Zheng,
Jun Xu,
W. RybaRomanowski,
Radosław Lisiecki
Publication year - 2010
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.18.021370
Subject(s) - materials science , optics , crystal (programming language) , laser , saturable absorption , q switching , pulse width modulation , doping , continuous wave , absorption spectroscopy , optoelectronics , fiber laser , power (physics) , physics , quantum mechanics , computer science , programming language
An Nd-doped Lu(1.5)Y(1.5)Al(5)O(12) (Nd:LuYAG) crystal was obtained by Czochralski method. Absorption and emission spectra were recorded at low and room temperature. Continuous wave (CW) and passively Q-switched laser operations of Nd:LuYAG crystal were, to our knowledge, demonstrated for the first time. A CW output power of 1.67 W with slope efficiency of 39.8% was obtained. In the passively Q-switched operation, the shortest pulse width, largest pulse energy, and highest peak power were achieved to be 9.6 ns, 61.7µJ, and 6.4 kW, respectively, with Cr(4+):YAG crystals as the saturable absorbers.