Abstract
By using the cascaded KDP crystals, the third harmonic generation (THG) of temporal phase modulated broadband laser is experimentally demonstrated in this paper. The spectral characteristic of the generated third harmonic waves is investigated in detail. The experimental results show that the cascaded crystals method is able to satisfy the acceptance bandwidth of broadband laser beam. In addition, the influence on the THG spectrum and THG conversion efficiency of the air spacing between the two cascaded crystals is experimentally studied and it is remarkable on THG spectrum but insignificant for THG conversion efficiency. The relatively ideal THG spectrum is obtained by the optimal parameter of air spacing and the stability of THG spectrum is very good in our experiment.
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Wang, W., Zhang, X., Zhao, S. et al. Efficient frequency tripling of phase modulated laser based on two KDP mixers in tandem array. Laser Phys. 20, 1721–1724 (2010). https://doi.org/10.1134/S1054660X10150211
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DOI: https://doi.org/10.1134/S1054660X10150211