[1] KARPF A, RAO G N. Absorption and wavelength modulation spectroscopy of NO2 using a tunable, external cavity continuous wave quantum cascade laser［J］. Applied Optics, 2009, 48(2):408-413.
[2] DUFFIN K, MCGETTRICK A J, JOHNSTONE W, et al. Tunable diode-laser spectroscopy with wavelength modulation: a calibration-free approach to the recovery of absolute gas absorption line shapes［J］. Lightwave Technology, 2007, 25(10):3114-3125.
[3] NELSON D D, SHORTER J H, MCMANUS J B, et al. Sub-part-per-billion detection of nitric oxide in air using a thermoelectrically cooled mid-infrared quantum cascade laser spectrometer［J］. Applied Physics B, 2002, 75(2-3):343-350.
[4] MOESKOPS B W M, CRISTESCU S M, HARREN F J M. Sub-part-per-billion monitoring of nitric oxide by use of wavelength modulation spectroscopy in combination with a thermoelectrically cooled, continuous-wave quantum cascade laser［J］. Optics Letters, 2006, 31(6):823-825.
[5] KOSTEREV A, WYSOCKI G, BAKHIRKIN Y, et al. Application of quantum cascade lasers to trace gas analysis［J］. Applied Physics B, 2008, 90(2):165-176.
[6] ZXYS Colorado ［EB/OL］. ［2015-7-10］http://www. directedenergy. com/
[7] SUN K, CHAO X, SUR R, et al. Analysis of calibration-free wavelength-scanned wavelength modulation spectroscopy for practical gas sensing using tunable diode lasers［J］. Measurement and Science and Technology, 2013, 24(12):1-12.
[8] ZHAO Jian-hua, GAO Ming-liang, WU Xiu-juan. Design of laser controller for the technology of wavelength modulation spectroscopy［J］. Laser&Infrared, 2010, 40(5): 537-541.
[10] RIEKER G B, JEFFRIES J B, HANSON R K. Calibration-free wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments［J］. Applied Optics, 2009, 48(29):5546-5560.
[11] SU Yuan-bin, SUN Li-tan, YANG Zhi-jian, et al. Progress in research of low voltage varistor［J］. Electronic Components and Materials, 2010, 29(6):74-78.
[12] YANG Chun-bin, JIA Hong-zhi, XIA Gui-zhen. Design for the circuit to eliminate surge of the laser diode power supply［J］. Applied Laser, 2008, 28(4): 310-312.
[13] WANG Jin-ding, LIU Hong-lin, WANG Yun-cai. Novel protective circuits of diode lasers［J］. Applied Laser, 2006, 26(2):120-121.
[14] DANG Jing-min, FU Li, HE Qi-xin, et al. Development of pulse-mode driver for distributed-feedback quantum cascade laser［J］. Acta Photonica Sinica, 2015, 44(2):0214001.
[15] CURL R F, CAPASSO F, GMACHL C, et al. Quantum cascade lasers in chemical physics［J］. Chemical Physics Letters, 2010, 487(1):7-9.
[17] LIU Tan-ping, WANG Zhao-ba. High-power semiconductor laser equivalent circuit model with parasitic parameter［J］. Journal of North University of China(Natural Science Edition), 2014, 35(6):750-756.
[18] HUANG Jian-qiang, ZHAI Bing, HE Qi-xin, et al. A board-level temperature controller for near-infrared semiconductor laser used in humidity detection［J］. Acta Photonica Sinica, 2014, 43(6): 0614003.
[19] DU Bao-qiang. The linearity of an experimental curve［J］. Instrumentation and Measurement, 2004, 23(9):72-80.
[20] LU Kai, LIU Bai-yu, BAI Yong-lin, et al. High power laser diode drive power supply［J］. Infrared and Laser Engineering, 2012, 41(10): 2680-2684.
