Collection Of theses on high power laser and plasma physics, 2016, 14 (1): 0919002, Published Online: Mar. 23, 2017  

Fourth Harmonic Conversion of 1053 nm Laser Based on 65% Deuterated DKDP Crystals

Author Affiliations
1 中国科学院上海光学精密机械研究所高功率激光物理联合实验室, 上海 201800
2 中国科学院大学, 北京 100049
3 中国工程物理研究院上海激光等离子体研究所, 上海 201800
Abstract
Based on the mass fraction of 65% deuterated DKDP crystals, the fourth harmonic conversion of 1053 nm laser is realized under the condition of noncritical phase matching (NCPM). The experimentally measured crystal temperature is 29.4 ℃ and the acceptance angle width of the crystals under the NCPM condition is around 55 mrad. Effects of the deuterated amount and the temperature of the DKDP crystals in the process of NCPM on the fourth harmonic conversion are theoretically analyzed. The relationship between the deuterated amount and temperature and the changing of the fourth harmonic conversion efficiency versus the double frequency light intensity are numerically simulated. These results provide a theoretical basis for the application of fourth harmonic laser in the high power laser system.

Jiang Xiuqing, Ji Lailin, Liu Dong, Tang Shunxing, Guo Yajing, Zhu Baoqiang, Lin Zunqi. Fourth Harmonic Conversion of 1053 nm Laser Based on 65% Deuterated DKDP Crystals[J]. Collection Of theses on high power laser and plasma physics, 2016, 14(1): 0919002.

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