Abstract
Radially polarized laser beam amplification up to the 772 mJ using flash-lamp-pumped Nd:YAG amplifiers was demonstrated. In the experiments, a nanosecond radially polarized seed beam was converted from a conventional Q-switched Nd:YAG laser output with a polarization converter and then amplified with two Nd:YAG amplifier stages. A maximum amplification output energy up to 772 mJ was achieved at 10 Hz with a 10-ns pulse, corresponding to an amplification factor of 323%. Excellent conservation of polarization was also obtained during the amplification.
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Acknowledgements
The work is supported by the National Natural Science Foundation of China (NSFC) (61575070, 61605049, and 11674111), Fujian Province Science Funds for Distinguished Young Scholar (2015J06015).
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Chang, C., Chen, X. & Pu, J. High-energy nanosecond radially polarized beam output from Nd:YAG amplifiers. Opt Rev 24, 188–192 (2017). https://doi.org/10.1007/s10043-017-0319-x
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DOI: https://doi.org/10.1007/s10043-017-0319-x