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鉴于波分复用(WDM)技术已成为光纤通信的发展方向，本文综述了双向交错传输技术。由于相邻信道之间的相位失匹配，它是抑制四波混频的有效手段；采用适当的放大技术可以抑制瑞利背向散射；另外介绍了偏振位交错复用传输技术，它们对于扩大通信容量很有意义。
In view of the WDM technology has become the development direction of optical fiber communications, this paper reviews the bidirectional interleaving transmission technology. Due to the phase mismatch between adjacent channels, it is an effective way to suppress the four-wave mixing. The Rayleigh backscattering can be suppressed by proper amplification techniques. In addition, the interleaving of polarization bits is introduced, Capacity makes sense.