[1] XU L,WANG T,CHOWDHURY A,et al.Spectral efficient transmission of 40Gbit/s per channel over YOGHz spaced DWDM systems using optical carrier suppression,separation and optical duobinary modulation[C]//OFC/NFOEC'2006.Anaheim,Califomin:Optical Society of America,2006:NTUC2.
[2] CHEN D Z,WELLBROCK G,PENTICOST S J,et al.World's first 40 Gbit/s overlay on a field-deployed,10Gbit/s,mixed-fiber,1200km,ultra long-haul system.[C]//Thomas Afferton OFC'2005.Anaheim,California:Optieul Seciety of America,2005:OTuH4.
[3] DAIKOKU M,YOSHIKANE N,MORITA I.Performance comparison of modulation formats for 40Gbit/s DWDM transmission systems[C]//Thomas Afferton OFC'2005.Anaheim,CMifomia:Optical Society of America.2005:OFNI.
[4] PILIPETSKII A N.Pulse propagation effects at high bit rates[C]//OFC/NFOEC'2006.Anaheim,California:Optical Society pf America,2006:OWJ7.
[5] GUAN A H,SUN J Q.Impact of OXC architecture on the accummula tion of intraband cmsstalk in WDM optical netwoAs[J].Lasers Technology,2006,30(6):653-656(in Chinese).
[6] TKACH R W,CHRAPLYYY A R,FORGHIERI F,et al.Four-photon mixing and high-speed WDM systems[J].IEEE Jounml of Lightwave Technology,1995,13(5):841-849.
[7] SHIBATA N,BRAUN R P,WAARTS R G.Phase-mismatch dependence of efficiency of wave generation throngh four-wave mixing in a single-mode optical fiber[J].IEEE J Q E,1987,QE3(7):1205-1210.
[8] IINOUE K.Phase-mismatching characteristic of four-wave mixing in fiher lines with multistage optimal amplifiers[J].Opt Lett,1992,17 (11):801-803.
[9] NEOKOSMIDIS I.KAMALAKIS T,CHIPOURAS A,et al.New techniques for the suppression of the Four-wave mixing-inducod distortion in nonzero dispersion fiber WDM systems[J].IEEE Journal of Lightwave Technology,2005,23(3):1137-1144.
[10] AGRAWAL G P.Nonlinear optical fiber[M].Beijing:Beijing Science and Technology Press.2002:36-40(in Chinese).