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Short and symmetric pulse in double Q-switching Nd:GdVO4 1.34 μm laser with AO and Co2+:MgAl2O4 saturable absorber

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Abstract

By using an acousto-optic modulator and a Co2+:MgAl2O4 saturable absorber, a diode-pumped double Q-switching Nd:GdVO4 laser at 1.34 μm was realized. The experimental results show that the pulse width is compressed and the pulse profile is symmetric at a certain extent when compared to the single Q-switching laser. At the absorbed pump power of 5.59 W and the AO modulation frequency (f) of 4 kHz, the shortest pulse width of 39.2 ns and the greatest peak power of 1.16 kW have been obtained.

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Acknowledgements

This work was supported from the National Natural Science Foundation of China (No. 61475089) and Development Projects of Shan-dong Province Science and Technology (2017GGX30102).

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Authors and Affiliations

  1. Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China

    Cong Wang, Jingjing Liu, Yuqian Zu, Xiuwei Fan & Jie Liu

  2. Institute of Data Science and Technology, Shandong Normal University, Jinan, 250014, China

    Xiuwei Fan & Jie Liu

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  1. Cong Wang
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  2. Jingjing Liu
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  3. Yuqian Zu
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  4. Xiuwei Fan
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  5. Jie Liu
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Correspondence to Jie Liu.

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Wang, C., Liu, J., Zu, Y. et al. Short and symmetric pulse in double Q-switching Nd:GdVO4 1.34 μm laser with AO and Co2+:MgAl2O4 saturable absorber. Opt Quant Electron 50, 122 (2018). https://doi.org/10.1007/s11082-018-1354-y

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