Low-threshold diode-pumped Yb3+,Na+:CaF2 self-Q-switched laser

For the first time to our knowledge, the laser performance of Yb3+, Na+-codoped CaF2 single crystals was demonstrated. Self-Q-switched laser operation at 1050nm was observed for 976 nm diode pumping at room temperature. On 5 W of incident power, the repetition rate and width of the self-Q-switched p...

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Bibliographic Details
Published in:Optics express 2005-07, Vol.13 (15), p.5635-5640
Main Authors: Su, Liangbi, Xu, Jun, Xue, Yinghong, Wang, Chingyue, Chai, Lu, Xu, Xiaodong, Zhao, Guangjun
Format: Article
Language:English
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Summary:For the first time to our knowledge, the laser performance of Yb3+, Na+-codoped CaF2 single crystals was demonstrated. Self-Q-switched laser operation at 1050nm was observed for 976 nm diode pumping at room temperature. On 5 W of incident power, the repetition rate and width of the self-Q-switched pulses reached 28 kHz and 1.5 micros, respectively. A maximal slope efficiency of 20.3% and minimal threshold absorbed pump power of 30 mW were respectively achieved with different output couplers, showing the promising application of Yb3+, Na+-codoped CaF2 crystals as compact and efficient solid-state lasers.
ISSN:1094-4087
1094-4087
DOI:10.1364/OPEX.13.005635