Saturable absorption of Yb3+/Na+ codoped CaF2 crystals at 1050nm
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Published:2008
Issue:5
Volume:57
Page:2966
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ISSN:1000-3290
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Container-title:Acta Physica Sinica
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language:
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Short-container-title:Acta Phys. Sin.
Author:
Chai Lu ,Yan Shi ,Xue Ying-Hong ,Liu Qing-Wen ,Ge Wen-Qi ,Wang Qing-Yue ,Su Liang-Bi ,Xu Xiao-Dong ,Zhao Guang-Jun ,Xu Jun ,
Abstract
The saturable absorption of Yb3+/Na+ codoped CaF2 crystals at 1050nm has been demonstrated by comparative experiments by inserting the novel Yb3+,Na+:CaF2 crystal with different doping concentrations into a Yb:YAG laser in stable continuous wave operation, which is the cause for the crystals working as the gain material to tend to self-Q-switching at 1050nm. The results show that the dominative element is Yb3+ rather than Na+ for saturable absorption action of the crystals. However, the effect of Q-switching by codoping Na+ into the CaF2 crystals can be greatly improved so that the Yb3+,Na+:CaF2 crystals with optimum concentration and doping ratio can be used as a Q-switching element at 1050nm.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy