提出了一种由一段正色散光纤和一段负色散光纤构成的光纤链路的压缩脉冲的简易方法:采用正色散光纤将初始脉冲整形为抛物自相似脉冲，并以负色散光纤作为脉冲压缩器对整形脉冲进行压缩。采用对称分步傅里叶方法研究了不同初始啁啾对脉冲整形的影响，并用一个只与脉冲形状有关的无量纲因子衡量脉冲整形效果。发现初始负啁啾有利于加快脉冲的整形速度，而初始正啁啾时得到的最佳抛物自相似脉冲的啁啾线性范围较宽。并理论和数值分析了三阶色散对脉冲压缩的影响。结果表明，利用三阶色散部分补偿方法可以削弱三阶色散对脉冲演化的影响，得到高质量高压缩比的输出脉冲。

Based on the fiber link consisting of a section of a positive-dispersion and a negative-dispersion optical fiber, a method of pulse compression is proposed. The parabolic self-similar pulses are generated through a normal-dispersion fiber, then compressed by an anomalous dispersion fiber. The effect of initial chirp on pulse shaping is numerically investigated with the symmetrical distribution Fourier method. By introducing a dimensionless factor to characterize the pulse shape, it is found that, the initial negative chirp accelerates pulse shaping and the initial positive chirp is apt to broaden the range of best linear chirp of the best parabolic pulse. And the effect of third-order dispersion on pulses compression is theoretically and numerically investigated. The results show that the third-order dispersion can be weakened by using third-order dispersion partial compensation fiber.