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High-power passively Q-switched Nd:YVO4 UV laser at 355 nm

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Abstract

We report on an efficient high-power passively Q-switched UV laser at 355 nm. We take into account the second threshold criterion and the thermal-lensing effect to design and realize a compact reliable passively Q-switched Nd:YVO4 laser with Cr4+:YAG as a saturable absorber. At an incident pump power of 16.3 W, the average output power at 1064 nm reaches 6.2 W with a pulse width of 7 ns and a pulse repetition rate of 56 kHz. Employing the developed passively Q-switched laser to perform the extra-cavity harmonic generations, the maximum average output powers at 532 nm and 355 nm are up to 2.2 W and 1.62 W, respectively.

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Authors and Affiliations

  1. Department of Electrophysics, National Chiao Tung University, 1001 TA Hsueh Road, Hsinchu, 30050, Taiwan

    Y. J. Huang, Y. P. Huang, P. Y. Chiang, H. C. Liang, K. W. Su & Y.-F. Chen

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  1. Y. J. Huang
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  2. Y. P. Huang
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  3. P. Y. Chiang
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  4. H. C. Liang
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  5. K. W. Su
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  6. Y.-F. Chen
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Correspondence to Y.-F. Chen.

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Huang, Y.J., Huang, Y.P., Chiang, P.Y. et al. High-power passively Q-switched Nd:YVO4 UV laser at 355 nm. Appl. Phys. B 106, 893–898 (2012). https://doi.org/10.1007/s00340-011-4758-y

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  • DOI: https://doi.org/10.1007/s00340-011-4758-y

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