高效紧凑室温Yb:YAG板条全固态激光技术研究

高清松; 周唐建; 尚建力; 汪丹; 李密; 邬映臣; 王君涛; 王亚楠; 徐浏; 杜应磊; 陈小明; 张凯; 唐淳

doi:10.11884/HPLPB202032.200185

高效紧凑室温Yb:YAG板条全固态激光技术研究

doi: 10.11884/HPLPB202032.200185

高清松^{1, 2,},
周唐建^{1, 2},
尚建力^{1, 2},
汪丹^{1, 2},
李密^{1, 2},
邬映臣^{1, 2},
王君涛^{1, 2},
王亚楠^{1, 2},
徐浏^{1, 2},
杜应磊^{1, 2},
陈小明^{1, 2},
张凯^{1, 2},
唐淳^{1, 2}

1.
中国工程物理研究院应用电子学研究所，四川绵阳 621900
2.
中国工程物理研究院高能激光科学与技术重点实验室，四川绵阳 621900

基金项目: 国家自然科学基金项目（61705209）

详细信息

作者简介:
高清松（1972—），男，硕士生导师，研究员，从事高功率全固态激光技术研究；15883798199@163.com

中图分类号: TN248.1
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- 被引次数: 0
出版历程
- 收稿日期: 2020-07-02
- 修回日期: 2020-09-22
- 刊出日期: 2020-11-19

High efficiency and compact Yb:YAG slab all-solid-state laser at room temperature

Gao Qingsong^{1, 2
,},
Zhou Tangjian^{1, 2},
Shang Jianli^{1, 2},
Wang Dan^{1, 2},
Li mi^{1, 2},
Wu Yingchen^{1, 2},
Wang Juntao^{1, 2},
Wang Ya’nan^{1, 2},
Xu Liu^{1, 2},
Du Yinglei^{1, 2},
Chen Xiaoming^{1, 2},
Zhang Kai^{1, 2},
Tang Chun^{1, 2}

1.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
2.
Key Laboratory of High-energy Laser Science and Technology, CAEP, Mianyang 621900, China

摘要

摘要: 报道了高效紧凑室温Yb:YAG板条全固态激光研究进展。建立了室温Yb板条激光动力学模型，分析了泵浦激光通量和注入激光亮度与光光效率的关系，以及板条边缘效应抑制方法。实验获得了输出功率22.3 kW、光光效率36%和光束质量优于2.4倍衍射极限的激光输出，为更高功率的Yb板条激光关键技术研究及开发小型化、轻量化、实用化的高功率激光器奠定了基础。
- 激光技术 /
- 固体激光 /
- 板条激光 /
- 光束质量
Abstract: This paper presents the research progress of high efficiency and compact all-solid-state lasers based on Yb:YAG slab at room temperature. The laser dynamics model of Yb slab at room temperature is established. It is quantitatively analysed that the pumped laser intensity and the injected laser brightness influence the optical conversion efficiency. The method to suppress the slab-edge-effect is founded. The output power of 22.3 kW, the optical conversion efficiency of 36%, and the beam quality of 2.4 times diffraction limit, were achieved in experiment. These results lay a foundation for the key technology research of higher power laser and development of the miniaturized, lightweight and practical high power Yb slab laser.
- laser technology /
- solid state laser /
- slab laser /
- beam quality

HTML全文

图 1 300 K时Yb:YAG能级结构

Figure 1. Yb:YAG energy level structure at 300 K

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图 2 300 K时Yb:YAG的吸收光谱和受激发射光谱

Figure 2. Absorption spectra and stimulated emission spectra of Yb:YAG at 300 K

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图 3 板条增益模块波前畸变

Figure 3. Wavefront distortion of slab gain module

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图 4 反射式4f像传递光路

Figure 4. Optical path of reflective 4f image system

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图 5 激光放大链路静态像差测试结果

Figure 5. Static aberration test results

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图 6 板条端面及棱边表面质量对比图

Figure 6. Contrast diagram of slab surface quality

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图 7 Yb:YAG板条激光MOPA放大链路

Figure 7. Schematic diagram of a Yb:YAG slab MOPA amplifier chain

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图 8 单个板条增益模块提取功率与泵浦功率关系（小图中为实验条件下的光光效率）

Figure 8. Relationship between the pumped power and extracted power from the single gain module

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图 9 Yb板条激光远场强度分布

Figure 9. Far-field intensity distribution of Yb slab laser at the room temperature

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参考文献(14)

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