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

[2] G. P. Agrawal. Nonlinear Fiber Optics. San Diego, CA: Academic, 1995

[3] F. Matera, A. Mecozzi, M. Romagnoli et al.. Sideband instability induced by periodic power variation in long-distance fiber links. Opt. Lett., 1993, 18(18): 1499～1501

[4] K. Tai, A. Hasegawa, A. Tomita. Observation of modulational instability in optical fibers. Phys. Rev. Lett., 1986, 56(2): 135～137

[5] D. Anderson, M. Lisak. Modulational instability of coherent optical-fiber transmission signals. Opt. Lett., 1984, 9(10): 468～470

[6] N. Shibata, R. P. Braun, R. G.Waarts. Phase-mismatch dependence of efficiency of wave generation through four-wave mixing in a single-mode optical fiber. J. Quant. Electron., 1987, QE-23(7): 1205～1210

[7] A. Boskovic, S. V. Chernikov, J. R. Taylor. Direcy continuous-wave measurement of n2 in various types of telecommication fiber at 1.55 μm. Opt. Lett., 1996, 21(24): 1966～1968