[1] Koch G J, Barnes B W, Petros M et al. Coherent differential absorption lidar measurements of CO2[J]. Applied Optics, 43, 5092-5099(2004).

[2] Bach T. Herrmann T R W, Cellarius C, et al. Bladder neck incision using a 70 W 2 micron continuous wave laser (RevoLix)[J]. World Journal of Urology, 25, 263-267(2007).

[3] Fried N M, Murray K E. High-power thulium fiber laser ablation of urinary tissues at 1.94 μm[J]. Journal of Endourology, 19, 25-31(2005).

[4] Leindecker N, Marandi A, Byer R L et al. Octave-spanning ultrafast OPO with 26--61 μm instantaneous bandwidth pumped by femtosecond Tm-fiber laser[J]. Optics Express, 20, 7046-7053(2012).

[5] Shen Y J, Yao B Q, Duan X M et al. 103 W in-band dual-end-pumped Ho∶YAG laser[J]. Optics Letters, 37, 3558-3560(2012).

[6] Zhao B R, Yao B Q, Qian C P et al. 231 W dual-end-pumped Ho∶YAG MOPA system and its application to a mid-infrared ZGP OPO[J]. Optics Letters, 43, 5989-5992(2018).

[7] Dergachev A, Armstrong D, Smith A et al. 3.4-μm ZGP RISTRA nanosecond optical parametric oscillator pumped by a 2.05-μm Ho∶YLF MOPA system[J]. Optics Express, 15, 14404-14413(2007).

[8] Wang F, Shen D Y, Fan D Y et al. Efficient Ho∶YLF laser pumped by tunable Tm-doped fiber laser[J]. Chinese Journal of Lasers, 36, 1727-1731(2009).

[9] Bollig C, Strauss H J. Esser M J D, et al. Compact fibre-laser-pumped Ho∶YLF oscillator-amplifier system. [C]∥European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, June 14-19, 2009. Munich, Germany: IEEE, 5196612(2009).

[10] Yao B Q, Duan X M, Zheng L L et al. Continuous-wave and Q-switched operation of a resonantly pumped Ho∶YAlO3 laser[J]. Optics Express, 16, 14668-14674(2008).

[11] Duan X M, Yao B Q, Yang X T et al. Room temperature efficient continuous wave and Q-switched operation of a Ho∶YAP laser[J]. Applied Physics B, 96, 379-383(2009).

[12] Yu T, Ye X S, Yang Z G et al. All fiber thulium-doped fiber laser pumped Q-switched Ho∶YAP laser[J]. Procedings of SPIE, 10173, 101731M(2017).

[13] Weber M J, Bass M, Andringa K et al. Czochralski growth and properties of YAlO3 laser crystals[J]. Applied Physics Letters, 15, 342-345(1969).

[14] Stoneman R C, Esterowitz L. Efficient 1.94-μm Tm∶YALO3 laser[J]. IEEE Journal of Selected Topics in Quantum Electronics, 1, 78-81(1995).