基于高阶色散管理和相位共轭技术的色散补偿

相位共轭技术能够同时且高效地补偿二阶色散及非线性效应，且该技术同信号比特率、调制方式无关，是最有前景的色散补偿技术之一。理论分析了在高阶色散作用下，超短高斯脉冲信号在中距相位共轭通信系统中的传输演化特性，数值模拟了在二阶、三阶和四阶色散作用下，飞秒高斯脉冲信号在基于中距相位共轭技术的光纤色散管理链中的动态传输过程。结果表明，相位共轭技术和高阶色散管理相结合，不仅可以补偿和复原包括奇数阶和偶数阶色散在内的全部色散和非线性所引入的信号失真和畸变，而且能够减弱时分复用系统中脉冲之间的相互作用，使得信号在传输一个周期后恢复波形，从而提高了相位共轭系统对失真信号的补偿性能。

Compensation for Dispersion by Higher-Order Dispersion Management in Fiber Communication System with Midway Optical Phase Conjugation

Optical phase conjugation (OPC) is a promising optical technology that can compensate for dispersion and nonlinearity effects simultaneously in pulse propagation through a single-mode fiber. In optical fiber communication system with midway OPC employing dispersion management, effects of higher-order dispersion are analyzed theoretically. Dynamic evolution of ultra-short Gaussian pulses in the system is simulated numerically. The results demonstrate that the higher-order dispersion-managed OPC system can not only compensate for all n th-order dispersion including even order and odd order, but also eliminate the interaction of pulses, hence improve the compensation performance for the distortion.