| 二极管侧面抽运Nd:YAG/KTP腔内倍频百瓦级绿光激光器 |
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| 引用本文： | 张豪磊,陈秀艳,李修,陈浩伟,任兆玉,白晋涛. 二极管侧面抽运Nd:YAG/KTP腔内倍频百瓦级绿光激光器[J]. 应用光学, 2009, 30(5) |
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| 作者姓名： | 张豪磊 陈秀艳 李修 陈浩伟 任兆玉 白晋涛 |
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| 作者单位： | 1. 西北大学,光子学与光子技术研究所暨陕西省光电子技术重点实验室,陕西,西安,710069;陕西省高功率全固态激光器及应用工程技术研究中心,陕西,西安,710069
2. 西北大学,光子学与光子技术研究所暨陕西省光电子技术重点实验室,陕西,西安,710069;陕西省高功率全固态激光器及应用工程技术研究中心,陕西,西安,710069;西北大学,物理系,陕西,西安,710069 |
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| 基金项目： | 西北大学研究生创新基金资助项目，国家级火炬计划项目 |
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| 摘 要： | 为了获得百瓦级激光二极管侧面泵浦绿光激光器,设计了双棒串接、双声光调Q的Z型谐振腔结构.依据光束传输矩阵,通过软件模拟并计算了激光晶体内基模半径随屈光度的变化以及倍频晶体附近腔内光场在子午面和弧矢面内的分布情况,筛选出理想的谐振腔参数.在总泵浦功率1 080 W,声光调Q重复频率为10 kHz时,获得532 nm绿光最大平均输出功率为174.1 W,脉冲宽度为160 ns,光-光转换效率为16.1%,光束质量因子M2x＝9.63,M2y＝9.78.实验结果表明,使用双棒串接、双声光调制Z型腔结构,可以获得百瓦级高功率高光束质量532 nm绿光输出.
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| 关 键 词： | 高功率激光 双棒串接 声光调Q开关 腔内倍频 |
Internally frequency-doubled hectowatt-level Nd:YAG/KTP green laser side-pumped by LD |
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| ZHANG Hao-lei,CHEN Xiu-yan,LI Xiu,CHEN Hao-wei,REN Zhao-yu,BAI Jin-tao. Internally frequency-doubled hectowatt-level Nd:YAG/KTP green laser side-pumped by LD[J]. Journal of Applied Optics, 2009, 30(5) |
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| Authors: | ZHANG Hao-lei CHEN Xiu-yan LI Xiu CHEN Hao-wei REN Zhao-yu BAI Jin-tao |
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| Abstract: | In order to obtain hectowatt-level green laser pumped by laser diode, two-rod series and two-acousto-optic Q-switching Z-shaped resonator was designed. According to the beam transformation matrixes, the variation of the fundamental mode radius in the laser crystal with the diopter and the distribution of the intracavity light field in the tangential and sagittal planes near the frequency-doubled crystal were simulated and calculated. The ideal resonator parameters were successfully sifted out based on the simulation and calculation. On the basis of optimal resonator parameters, the 532 nm green laser was acquired, whose highest average power was 174.1 W, the pulse width was 160 ns, the optical-optical conversion efficiency was 16.1%, and the beam quality factor was M2x＝9.63 and M2y＝9.78, when the total pumping power was 1 080 W and the repetition rate was 10 kHz. The result shows that high-power and high-quality hecto-watt-level green laser can be obtained by two-rod modules and two-acousto-optic Q-switched Z-shaped resonator configuration. |
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| Keywords: | high-power laser two-rod modules acousto-optic Q-switched intracavity frequency doubled |
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