[2] N. Takeda, S. Ryu, S. Akiba. 2.5 Gbit/s, 8 channel, 1056 km densely spaced coherent WDM transmission experiment [J]. Electron. Lett., 1996, 32(10): 907～908

[3] Jae-Hoon Jung, Sang-Yung Shin, Chang-Hee Lee. Effects of pre-chirping on the repeaterless dispersion managed transmission system [J]. Electron. Lett., 1996, 32(9): 831～833

[4] A. H. Gnauck, R. M. Jopson, P. P. Iannone et al.. Transmission of two wavelength-multiplexed 10 Gbit/s channels over 560 km of dispersive fibre [J]. Electron. Lett., 1994, 30(9): 727～728

[5] F. Ouellette. Dispersion cancellation using linearly chirped Bragg grating filters in optical waveguides [J]. Opt. Lett., 1987, 12(10): 847～849

[6] W. H. Loh, R. I. Laming, N. Robinson et al.. Dispersion compensation over distances in excess of 500 km for 10-Gb/s systems using chirped fiber grating [J]. IEEE Photon. Technol. Lett., 1999, 8(7): 944～946

[9] B. J. Egglton, A. Ahuja, P. S. Westbrook et al.. Integrated tunable fiber gratings for dispersion management in high-bit rate systems [J]. J. Lightwave Technol., 2000, 18(10): 1418～1432

[10] T. Imai, T. Komukai, M. Nakazawa. Dispersion tuning of a linearly chirped fiber Bragg grating without a center wavelength shift by applying a strain gradient [J]. IEEE Photon. Technol. Lett., 1998, 10(6): 845～847