Abstract
In this paper, we demonstrated an actively Q-switched, radially polarized, and laser-diode end-pumped Nd:YAG laser with an acousto-optic modulator as the Q switch and a photonic crystal grating as the output coupler. The laser generated pulses of 26.4–67.2 ns duration, and the repetition rate can be continuously adjusted from 500 Hz to 9.238 kHz with peak power up to 7.75 kW. Such a radially polarized pulse would facilitate numerous applications.
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Acknowledgements
This research is sponsored by National Science Foundation of China (60978025), Hundred Talents Program of CAS and Shanghai Pujiang Program (09PJ1410500). Kegui Xia thanks Di Lin, Zhiqiang Fang, Minqiang Kang, and Lei Xiao for discussion and help for the experiment. Jianlang Li acknowledges Dr. Takashi Sato and Antony Galea from Photonic Lattice Inc. for their supports in the grating mirrors.
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Xia, K.G., Ueda, KI. & Li, J.L. Radially polarized, actively Q-switched, and end-pumped Nd:YAG laser. Appl. Phys. B 107, 47–51 (2012). https://doi.org/10.1007/s00340-012-4886-z
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DOI: https://doi.org/10.1007/s00340-012-4886-z