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

作　　者：权聪 孙敦陆 张会丽 罗建乔 韩志远 乔阳 陈玙威 王镇涛 程毛杰 张庆礼 Cong Quan;Dunlu Sun;Huili Zhang;Jianqiao Luo;Zhiyuan Han;Yang Qiao;Yuwei Chen;Zhentao Wang;Maojie Cheng;Qingli Zhang(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;Advanced Laser Technology Laboratory of Anhui Province,National University of Defense Technology,Hefei 230037,China;Key Laboratory of Photonic Devices and Materials,Anhui Institute of Optics and Fine Mechanics,Hefei 230031,China;Science Island Branch,Graduate School,University of Science and Technology of China,Hefei 230026,China)

机构地区：[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

出　　处：《Chinese Physics B》2023年第11期472-476,共5页中国物理B(英文版)

基　　金：supported by the Natural Science Foundation of Anhui Province (Grant No. 2208085QF217);the National Natural Science Foundation of China (Grant No. 52102012);the Hefei Institutes of Physical Science (HFIPS) Director’s Fund (Grant No. YZJJ2022QN08)。

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 m J 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 TeO2crystal, the maximum output energies of 11.5 m J and 3.5 m J are obtained at 50 and 100 Hz, the corresponding peak powers are 93.4 k W 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 TeO2acousto-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 

分 类 号：TN248[电子电信—物理电子学]