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Multi-wavelength passively Q-switched red lasers with Nd3+:YAG/YAG/V3+:YAG/YAG composite crystal

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Abstract

We experimentally demonstrated a passively Q-switched red laser with an Nd3+:YAG/YAG/V3+:YAG/YAG composite crystal. Multi-wavelength operation at 659.5, 664 and 669 nm was observed. This is the first observation of the 1327.6 nm laser and its second harmonic generation from the Nd3+:YAG based system. The maximum average output power of red laser was 542 mW at the pumped power of 17.18 W. To the best of our knowledge, it is the highest output power of frequency-doubling red laser obtained in a passively Q-switched Nd3+:YAG system.

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Acknowledgements

Thanks to Dr. Wei Jiang for providing technical support for the experiment.

Funding

This study was funded by National Science Foundation (NSF) (61475067, 61605062); Guangdong Project of Science and Technology (201508010021, 2016B090917002, 2016B090926004), and Guangzhou Union Project of Science and Technology (201604040006, 201604040007).

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Correspondence to Si Qi Zhu.

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Zhou, H.Q., Bi, X.L., Zhu, S.Q. et al. Multi-wavelength passively Q-switched red lasers with Nd3+:YAG/YAG/V3+:YAG/YAG composite crystal. Opt Quant Electron 50, 56 (2018). https://doi.org/10.1007/s11082-018-1326-2

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