High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

doi:10.1088/1674-1056/ace8f7

中国物理B ›› 2023, Vol. 32 ›› Issue (11): 114207-114207.doi: 10.1088/1674-1056/ace8f7

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

Cong Quan(权聪)^1,2,3, Dunlu Sun(孙敦陆)^1,2,3,†, Huili Zhang(张会丽)^1,2,3, Jianqiao Luo(罗建乔)^1,2,3, Zhiyuan Han(韩志远)^1,4, Yang Qiao(乔阳)^1,4, Yuwei Chen(陈玙威)^1,4, Zhentao Wang(王镇涛)^1,4, Maojie Cheng(程毛杰)^1,4, and Qingli Zhang(张庆礼)^1,2,3

1 Crystal Laboratory of Laser Technology Research Center, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China;
2 Advanced Laser Technology Laboratory of Anhui Province, National University of Defense Technology, Hefei 230037, China;
3 Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Hefei 230031, China;
4 Science Island Branch, Graduate School, University of Science and Technology of China, Hefei 230026, China

收稿日期:2023-05-13 修回日期:2023-07-18 接受日期:2023-07-20 出版日期:2023-10-16 发布日期:2023-10-16
通讯作者: Dunlu Sun E-mail:dlsun@aiofm.ac.cn
基金资助:
This work was supported by the Natural Science Foundation of Anhui Province (Grant No. 2208085QF217), the National Natural Science Foundation of China (Grant No. 52102012), and the Hefei Institutes of Physical Science (HFIPS) Director’s Fund (Grant No. YZJJ2022QN08).

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

1 Crystal Laboratory of Laser Technology Research Center, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China;
2 Advanced Laser Technology Laboratory of Anhui Province, National University of Defense Technology, Hefei 230037, China;
3 Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Hefei 230031, China;
4 Science Island Branch, Graduate School, University of Science and Technology of China, Hefei 230026, China

Received:2023-05-13 Revised:2023-07-18 Accepted:2023-07-20 Online:2023-10-16 Published:2023-10-16
Contact: Dunlu Sun E-mail:dlsun@aiofm.ac.cn
Supported by:
This work was supported by the Natural Science Foundation of Anhui Province (Grant No. 2208085QF217), the National Natural Science Foundation of China (Grant No. 52102012), and the Hefei Institutes of Physical Science (HFIPS) Director’s Fund (Grant No. YZJJ2022QN08).

摘要/Abstract

摘要： We demonstrate a high-energy and high-power pulse laser on a xenon lamp-pumped Er:YAP crystal. The laser performance and thermal focal lengths under different working frequencies are discussed. The results show that the thermal lens effect is gradually aggravated with the increase of working frequencies, and even working at 100 Hz, a single pulse energy of 234 mJ can be achieved. A maximum average power of 41.5 W is achieved with a working frequency of 20 Hz and slope efficiency of 2.82%. This output power is much higher than other xenon lamp-pumped erbium laser devices. A Q-switched laser is demonstrated by using the TeO₂ crystal, the maximum output energies of 11.5 mJ and 3.5 mJ are obtained at 50 and 100 Hz, the corresponding peak powers are 93.4 kW and 17.2 kW, respectively. The laser wavelengths and beam quality factors are also characterized in the free-running and Q-switched modes. A higher pulse energy and peak power laser could be achieved further by improving the damage threshold of TeO₂ acousto-optical Q-switching. All the experimental results illustrate that the xenon lamp-pumped Er:YAP laser is a promising candidate for high-power and high-frequency mid-infrared laser devices.

关键词: Er:YAP crystal, xenon lamp-pumped, mid-infrared laser, acousto-optical Q-switching

Abstract: We demonstrate a high-energy and high-power pulse laser on a xenon lamp-pumped Er:YAP crystal. The laser performance and thermal focal lengths under different working frequencies are discussed. The results show that the thermal lens effect is gradually aggravated with the increase of working frequencies, and even working at 100 Hz, a single pulse energy of 234 mJ can be achieved. A maximum average power of 41.5 W is achieved with a working frequency of 20 Hz and slope efficiency of 2.82%. This output power is much higher than other xenon lamp-pumped erbium laser devices. A Q-switched laser is demonstrated by using the TeO₂ crystal, the maximum output energies of 11.5 mJ and 3.5 mJ are obtained at 50 and 100 Hz, the corresponding peak powers are 93.4 kW and 17.2 kW, respectively. The laser wavelengths and beam quality factors are also characterized in the free-running and Q-switched modes. A higher pulse energy and peak power laser could be achieved further by improving the damage threshold of TeO₂ acousto-optical Q-switching. All the experimental results illustrate that the xenon lamp-pumped Er:YAP laser is a promising candidate for high-power and high-frequency mid-infrared laser devices.

Key words: Er:YAP crystal, xenon lamp-pumped, mid-infrared laser, acousto-optical Q-switching

中图分类号: (Laser materials)

42.70.Hj

42.55.-f (Lasers) 42.60.Gd (Q-switching)

Cong Quan(权聪), Dunlu Sun(孙敦陆), Huili Zhang(张会丽), Jianqiao Luo(罗建乔), Zhiyuan Han(韩志远), Yang Qiao(乔阳), Yuwei Chen(陈玙威), Zhentao Wang(王镇涛), Maojie Cheng(程毛杰), and Qingli Zhang(张庆礼). High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes[J]. 中国物理B, 2023, 32(11): 114207-114207.

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High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

High-power xenon lamp-pumped Er:YAP pulse laser operated in free-running and acousto-optical Q-switching modes

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