[1] C. Caspar, H. M. Foisel, A. Gladisch et al.. RZ Versus NRZ modulation format for dispersion compensated SMF-based 10-Gb/s transmission with more than 100-km amplifier spacing[J]. IEEE Photon. Technol. Lett., 1999, 11(4): 451～483

[3] B. Bakhshi, M. Vaa, E. A. Golovchenko et al.. Comparison of CRZ, RZ ad NRZ modulation formats in a 64×12.3 Gb/s WDM transmission experiment over 9000 km[C], OFC ′2001, 2001. WF4-1～WF4-3

[4] Y. Miyamoto, A. Hirano, Y. Yonenaga et al.. 320 Gbit/s (8×40 Gbit/s) WDM transmission over 367 km with 120 km repeater spacing using carrier-suppressed return-to zero format[J]. Electron. Lett., 1999, 35(23): 2041～2042

[7] Tan Zhongwei, Jian Shuisheng, Yan Liu et al.. 10-Gb/s Transmission over 1400 km on G.652 fiber with dispersion compensation by chirped FBG[J]. Microwave and Opt. Technol. Lett., 2004, 42(3): 199～201

[8] Zhongwei Tan, Yan Liu, Yong Chen et al.. 8×10 Gb/s transmission system over 1500 km on G.652 fiber dispersion compensated by chirped fiber gratings[J]. Chin. Opt. Lett., 2005, 3(8): 441～443