| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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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 |
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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.
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Received: 13 May 2023
Revised: 18 July 2023
Accepted manuscript online: 20 July 2023
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| Fund: 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). |
Corresponding Authors:
Dunlu Sun
E-mail: dlsun@aiofm.ac.cn
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Cite this article:
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 2023 Chin. Phys. B 32 114207
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