[1] [1] Li Aizhen. The invention and advancement on unipolar quantum cascade lasers［J］. Chinese J. Lasers, 2010, 37(9): 2213～2220

[2] [2] Y. Bai, S. Slivken, S. R. Darvish et al.. High power broad area quantum cascade lasers［J］. Appl. Phys. Lett., 2009, 95(22): 221104

[3] [3] Yelena Isyanova, Alex Dergachev, David Welford et al.. Multi-wavelength, 1.5~10 μm tunable, tandem OPO［C］. in Advanced Solid-State Lasers, OSA Trends in Optics and Photonics, 1999. WB4

[4] [4] Markus Henriksson, Mikael Tiihonen, Valdas Pasiskevicius et al.. ZnGeP2 parametric oscillator pumped by a linewidth-narrowed parametric 2 μm source［J］. Opt. Lett., 2006, 31(12): 1878～1880

[5] [5] Chia Li Ching Lindy, Ng Hui Khoon. Nanosecond >4-micron PPLN OPO pumped by a Yb fiber laser［C］. OSA/CLEO,2004

[6] [6] Roberto Grilli, Luca Ciaffohi, Cus Harcock et al.. Mid-infrared ethene detection using difference frequency generation in a quasi-phase-matched LiNbO3 waveguide［J］. Appl. Opt., 2009, 48(30): 5696～5703

[7] [7] Alex Dergachev, Darreu Armstiong, Arlee Snith et al.. 3.4 μm ZGP RISTRA nanosecond optical parametric oscillator pumped by a 2.05 μm HoYLF MOPA system［J］. Opt. Express, 2007, 15(22): 14404～14413

[8] [8] A. F. Nieuwenhuis, C. J. Lee, P. J. M. Van Derslot et al.. High-efficiency mid-infrared ZnGeP2 optical parametric oscillator directly pumped by a lamp-pumped, Q-switched CrTmHoYAG laser［J］. Opt. Lett., 2008, 33(1): 52～54

[9] [9] Espen Lippert, Helge Fonnum, Gunnar Arisholm et al.. A 22-watt mid-infrared optical parametric oscillator with V-shaped 3-mirror ring resonator［J］. Opt. Express, 2010, 18(25): 26475～26483

[10] [10] A. Hemming,J. Richards, A. Davidson et al.. A 27 W mid-IR laser source［C］. in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 2011. C607

[11] [11] Xie Gang, Peng Yuefeng, Wang Weimin et al.. High-power mid-infrared 3.8 μm laser［J］. High Power Laser and Particle Beams, 2009, 21(7): 970～972

[12] [12] Yuefeng Peng, Xingbin Wei, Weimin Wang. Mid-infrared optical parametric oscillator based on ZnGeP2 pumped by 2 μm laser［J］. Chin. Opt. Lett., 2011, 9(6): 061403

[13] [13] Tan Huiming, Lin Hongyi, Zhang Bolin et al.. Mid-infrared tunable all-solid-state optical parametric oscillator based on PPMgLN［J］. Chinese J. Lasers, 2010, 37(9): 2303～2308

[14] [14] G. L. Zhu, Y. L. Ju, C. H. Zhang et al.. High-power, high-quality ZGP OPO pumped by a Tm, HoGdVO4 laser［J］. Solid State and Liquid Lasers, 2010, 20(6): 1341～1343

[15] [15] Lu Yanling, Yang Yang, Wang Jun et al.. Spectral properties of Tm:YAP laser crystal［J］. Chinese J. Lasers, 2006, 33(7): 968～972

[16] [16] Kevin T. Zawilski, Scott D. Setzler, Peter G. Schunemann et al.. Increasing the laser-induced damage threshold of single crystal ZnGeP2［J］. J. Opt. Soc. Am. B, 2006, 23(11): 2310～2316

[17] [17] Xia Shixing, Lei Zuotao, Wang Meng et al.. Growth and mid-infrared optical parametric oscillor of large ZnGeP2 single crystals［J］. Journal of Synthetic Crystals, 2011, 40(2): 541