[1] Hard T M. Laser wavelength selection and output coupling by a grating. Appl. Opt., 1970, 9(8):1825～1830

[2] Smith K, Thomson R M. Computer Modeling of Gas Lasers. New York: Plenum Press, 1978.1～78

[4] Wu Jin, Wan Chongyi. Rate equations for tunable TEA CO2 lasers. Chin. J. Quant. Electron., 2002, 19(5):425～430 (in Chinese)

[5] Witteman W J. The CO2 Laser. New York: Springer-Verlag, 1987. 22～60

[6] Soukieh M, Ghani B A, Hammadi M. Mathematical modeling of CO2 TEA laser. Opt. & Laser Technol., 1998, 30(8):451～457