电光调Q脉冲Ho: YLF激光器实验研究

赵莉莉; 田俊涛; 李志永; 王海

doi:10.11884/HPLPB202335.220368

电光调Q脉冲Ho: YLF激光器实验研究

doi: 10.11884/HPLPB202335.220368

赵莉莉^{1, 2,},
田俊涛^{1, 2},
李志永^{1, 2, ,},
王海^{1, 2}

1.
中国科学院空天信息创新研究院，激光工程技术研究中心，北京 100094
2.
中国科学院大学电子电气与通信工程学院，北京 100049

基金项目: 国家自然科学基金项目(61875198，61775215)；脉冲功率激光技术国家重点实验室开放基金项目（SKL2021KF04）；中国科学院仪器设备研制项目（YJKYYQ20210045）

详细信息

作者简介:
赵莉莉，18255117200@qq.com

通讯作者:
李志永，zhiyongli@aircas.ac.cn

中图分类号: O439
计量
- 文章访问数: 492
- HTML全文浏览量: 183
- PDF下载量: 82
- 被引次数: 0
出版历程
- 收稿日期: 2022-11-10
- 修回日期: 2023-01-08
- 录用日期: 2023-01-08
- 网络出版日期: 2023-02-04
- 刊出日期: 2023-03-01

Experimental research on electro-optical Q-switched pulse Ho: YLF laser

Zhao Lili^{1, 2
,},
Tian Juntao^{1, 2},
Li Zhiyong^{1, 2
, ,},
Wang Hai^{1, 2}

1.
Laser Engineering Technology Research Center, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2.
College of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

摘要

摘要: 2 μm低重复频率高峰值功率高光束质量激光在中长波光参量非线性频率变换等领域具有较为广阔的应用前景。采用L型谐振腔结构，使用42 W的掺Tm光纤激光器泵浦Ho: YLF晶体。基于磷酸钛氧铷（RTP）电光调Q技术，实现了重复频率50 Hz、脉冲宽度18 ns、脉冲能量13.5 mJ、峰值功率0.75 MW的2.05 μm Ho: YLF固体激光输出。光束的水平方向和竖直方向M²因子分别为1.4和1.1。该Ho: YLF固体激光器采用光纤激光器泵浦，具有结构紧凑的特点，为更高能量的Ho激光输出奠定了基础。
- Tm光纤激光器 /
- Ho: YLF /
- 电光调Q /
- 高峰值功率 /
- 低重复频率
Abstract: The 2 μm laser with low repetition rate, high peak power and high beam quality has a wide application prospect for nonlinear frequency transformation of mid-infrared and long-infrared optical parameters. The Ho: YLF crystal is pumped by a 42W Tm doped fiber laser with an L-shaped resonator structure. Laser output with wavelength of 2.05 μm, repetition rate of 50 Hz, pulse width of 18 ns , pulse energy of 13.5 mJ, and peak power of 0.75 MW is realized based on the electro-optic Q-switching technology of rubidium titanate phosphate (RTP). And the beam quality M² factors in the horizontal and vertical directions are 1.4 and 1.1, respectively. The Ho: YLF solid state laser is pumped by a fiber laser and has a compact structure, and it will build the foundation for Ho laser with higher pulse energy.
- Tm-fiber laser /
- Ho: YLF /
- electro-optical Q-switched /
- high peak power /
- low repetition rate

HTML全文

图 1 Ho: YLF激光器实验装置图

Figure 1. Experimental setup diagram of Ho: YLF laser

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图 2 Ho激光的脉冲能量、脉冲宽度随着泵浦能量变化

Figure 2. Pulse energy and pulse width vs pump energy of Ho laser

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图 3 脉冲波形图

Figure 3. Pulse waveform diagram

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图 4 脉冲实验的激光波长

Figure 4. Laser wavelength of pulse experiment

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图 5 光束质量因子测量结果

Figure 5. Measurement results of beam quality factor

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图 6 100 Hz时能量不稳定度

Figure 6. Energy instability at 100 Hz

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参考文献(15)

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