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Photoluminescence and laser behavior of Yb:YAG ceramic |
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| Authors: | Fei Tang Jiquan HuangWang Guo Wenchao WangBinjie Fei Yongge Cao |
| Affiliation: | a Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China b Graduate School of the Chinese Academy of Sciences, Beijing 100039, China c Department of Physics, Renmin University of China, Beijing 100872, China |
| Abstract: | Yb:YAG transparent ceramics with different doping concentration were fabricated by the traditional solid-state diffusion route, and their fluorescence properties and laser behavior were investigated. It is found that both the fluorescence intensity and lifetime depend deeply on both the doping concentration of Yb ions and the annealing treatment. The continuous wavelength (C.W.) laser performance for 10 at.% Yb:YAG ceramic suggests that both the threshold pump power and slope efficiency increase with increasing transmittance of the output couple (Toc). For Toc = 15%, the threshold pump power is about 6.1 W, the slope efficiency is 25%, and the maximum output power of 2.2 W is achieved when pumped by 14.9 W. |
| Keywords: | Yb:YAG transparent ceramics Fluorescence spectra Lifetime Laser output |
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