[1] CHEN H,ZHOU F X,XU Zh,et al.An integrated control system for carbon monoxide detection,emission and recyeling[J].Laser Technology,2011,35(3):360-363(in Chinese).
[2] ZHOU N,LI L S,CAO M D,et al.Development of 1650nm DFB lasers applied in trace methane detection[J].Laser Technology,2011,35(3):289-292(in Chinese).
[3] REID J,LABRIC D.Second-harmonic detection with tunable diode lasers:comparison of experiment and theory[J].Applied Physics,1981,B26(3):203-210.
[4] LINS B,ZINN P,ENGELBRECHT R,et al.Simulation based comparison of noise effects in wavelength modulation spectroscopy and direct absorption TDLAS[J].Applied Physics,2010,B100(2):367-376.
[5] TU X H,LIU W Q,ZHANG Y J,et al.Second-harmonic detection with tunable diode laser absorption spectroscopy of CO and CO2 at 1.58μm[J].Spectroscopy and Spectral Analysis,2006,26 (7):1190-1194 (in Chinese).
[6] BJORKLUND G C.Frequency-modulation spectroscopy:a new method for measuring weak absorptions and dispersions[J].Optics Letters,1980,5(1):15-17.
[7] YUAN J G,ZHAN Ch,LI X G,et al.Accurate controlling systemfor th output and frequency of laser diodes[J].Laser Technology,2006,30(6):650-652(in Chinese).
[8] BJORKLUND G C,LEVENSON M D.Frequency modulation(FM)spectroscopy:theory of lineshapes and signal-to-noise analysis[J].Applied Physics,1983,B32(3):145-152.
[9] WERLE P.A review of recent advances in semiconductor laser based gas monitors[J].Spectrochimica Acta,1998,A54(2):197-236.
[10] WU Sh Q,KIMISHIMA T,HIROAKI K,et al.Efficient reduction of fringe noise in trace gas detection with diode laser multipass absorption spectroscopy[J].Japanese Journal of Applied Physics,2000,39(7):4034-4040.
[11] GILLEN J I,MCLNTYRE D H.Simultaneous line center and linewidth measurement using dual frequency modulation spectroscopy[J].Applied Optics,2010,49(29):5528-5536.
[12] SILVER J A.Frcquency-modulation spectroscopy for trace species detection:theory and comparison among experimental methods[J].Applied Optics,1992,31 (6):707-717.
[13] WU Sh Q. Frequency modulation method of diode laser:China,200810058640.2[P].2008-11-19 (in Chinese).
[14] WU Sh Q,KIMISHIMA T,YOSHII Y,et Al.Reduction of fringe noise in wavelength modulation spectroscopy using a one-dimensional focal plane array[J].Optical Review,2002,9(5):189-192.