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基于65%掺氘DKDP晶体实现1053 nm激光四次谐波转换

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

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摘要

利用质量分数为65%的掺氘DKDP晶体实现了1053 nm激光在非临界相位匹配(NCPM)条件下的四次谐波转换,实验测得NCPM条件下晶体温度为29.4 ℃、晶体接收角宽约为55 mrad。理论分析了NCPM过程中DKDP晶体掺氘量和温度对四次谐波转换的影响,数值模拟了四次谐波转换过程中晶体掺氘量和温度的关系以及四倍频转换效率随倍频光强的变化,这些结果为四倍频光在高功率激光系统中的应用提供了理论依据。

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。

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中图分类号:O437

DOI:

所属栏目:高功率激光单元与总体技术

收稿日期:2016-04-13

修改稿日期:2016-05-06

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作者单位    点击查看

姜秀青: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中国科学院大学, 北京 100049
季来林:中国工程物理研究院上海激光等离子体研究所, 上海 201800
刘栋:中国工程物理研究院上海激光等离子体研究所, 上海 201800
唐顺兴: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
郭亚晶: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
朱宝强: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
林尊琪: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

联系人作者:姜秀青(jiangxiuqing1991@163.com)

备注:姜秀青(1991—),女,博士研究生,主要从事四次谐波转换方面的研究。

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引用该论文

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

姜秀青,季来林,刘栋,唐顺兴,郭亚晶,朱宝强,林尊琪。 基于65%掺氘DKDP晶体实现1053 nm激光四次谐波转换[J]。 高功率激光及等离子体物理研究论文集(专题), 2016, 14(1): 0919002

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