[1] [1] Forghieri F. Modeling of wavelength multiplexed lightwave systems. OFC′97 Technical Digest. Dallas, Texas, USA: Optical Society of America, 1997, 16～21

[2] [2] Tkach R W, Chraphlyvy A R, Forghieri F et al.. Four-photon mixing and high-speed WDM system. J. Lightwave Technology, 1995, 13(5):841～849

[3] [3] Agrwal G P. Nonlinear fiber optics (2nd Ed.). New York: Academic Press, 1995. 45～46

[5] [5] Marcuse D, Chraplyvy A R, Tkach R W. Effect of fiber nonlinearity on long-distance transmission. J. Lightwave Technology, 1991, 9(1):121～128