Abstract
We demonstrate for the first time a Cr4+:YAG passively Q-switched 1066 nm pulse-burst laser under 879 nm direct pump with a novel Nd:Gd0.69Y0.3NbO4 crystal. The output laser characteristics with different pump repetition rates and different Cr4+:YAG initial transmission are studied. Without the Cr4+:YAG, we obtain a maximum output energy of 2.55 mJ at an absorbed pump energy of 5.79 mJ with the highest 48% slope efficiency. The pulse-burst laser contains a maximum of 7 pulses for a Cr4+:YAG initial transmission of 55% and a pump repetition rate of 1 kHz. The single-pulse energy and narrowest pulse width reach 160 μJ and 5.5 ns at 38.2 kHz, with a peak power of 32 kW.
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Li, X., Xu, G., Yan, R. et al. A Novel 1,066 nm Nd:Gd0.69Y0.3NbO4 Passively Q-Switched Pulse-Burst Laser. J Russ Laser Res 39, 613–619 (2018). https://doi.org/10.1007/s10946-018-9759-4
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DOI: https://doi.org/10.1007/s10946-018-9759-4