1National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001 2School of Opto-electronic Information Science and Technology, Yantai University, Yantai 264005 3Synthetic Single Crystal Research Center, CAS Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899
Abstract：We experimentally investigate the continuous-wave (cw) and acousto-optical (AO) Q-switched performance of a diode-pumped Ho:(Sc$_{0.5}$Y$_{0.5})_{2}$SiO$_{5}$ (Ho:SYSO) laser. A fiber-coupled laser diode at 1.91 μm is employed as the pump source. The cw Ho:SYSO laser produces 13.0 W output power at 2097.9 nm and 56.0% slope efficiency with respect to the absorbed pump power. In the AO Q-switched regime, at a pulse repetition frequency of 5 kHz, the Ho:SYSO laser yields 2.1 mJ pulse energy and 21 ns pulse width, resulting in a calculated peak power of 100 kW. In addition, at the maximum output level, the beam quality factor of the Q-switched Ho:SYSO laser is measured to be about 1.6.
Shi J, Liu B, Zheng L, Wang Q, Tang H, Liu J, Su L, Wu F, Zhao H, He N, Li N, Li Q, Guo C, Xu J, Yang K, Xu X, Ryba-Romanowski W, Lisiecki R and Solarz P 2018 J. Cryst. Growth487 83
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Yang K, Feng T, Zhao S, Liu C, Li T, Ma W, Zou Z, Wang Q, Su L, Solarz P, Lisiecki R, Komar J, Xu J, Zheng L and Ryba-Romanowski W 2017 J. Alloys Compd.712 412
2019, Vol. 36 
