Dependence of the Yb3+ emission cross section and lifetime on temperature and concentration in yttrium aluminum garnet
JOSA B, Vol. 20, Issue 9, pp. 1975-1979 (2003)
http://dx.doi.org/10.1364/JOSAB.20.001975
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Abstract
Measurements are reported of the spectroscopic properties (absorption and emission spectra, stimulated-emission cross section, and radiative lifetime) of (YbxY1−x)3Al5O12 for nominal x values of 0.025, 0.05, 0.1, 0.2 and 0.3 at temperatures of 15–300 K. The emission cross sections of Yb:YAG with different Yb3+ concentrations were determined by use of the Füchtbauer–Ladenburg formula and the reciprocity method. At low temperatures, the product (στ) of the effective stimulated-emission cross section and the radiative lifetime is greater than at room temperature for all concentrations. Product στ is nearly independent of Yb3+ concentration at a given temperature. These results will aid in the design of high-power thin disk lasers by use of highly doped Yb:YAG.
© 2003 Optical Society of America
OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
Citation
Jun Dong, Michael Bass, Yanli Mao, Peizhen Deng, and Fuxi Gan, "Dependence of the Yb3+ emission cross section and lifetime on temperature and concentration in yttrium aluminum garnet," J. Opt. Soc. Am. B 20, 1975-1979 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-9-1975
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