以常规光纤中的皮秒脉冲孤子效应压缩过程为基础,研究了在有无损耗的光纤中初始啁啾对脉冲压缩的影响。研究发现,在损耗光纤中引入初始啁啾能够抵消光纤损耗对孤子效应压缩的负面影响,从而大大改善了脉冲压缩的效果。如果所选取的啁啾值适当,则可以几乎完全抵消光纤损耗的作用,从而使光脉冲呈现出如同在无损耗的光纤中传输时一样。 Based on the picosecond impulsive soliton compression in conventional optical fiber, the effect of initial chirp on pulse compression in a lossless optical fiber is investigated. It is found that the introduction of initial chirp in a lossy optical fiber can counteract the negative effect of fiber loss on the soliton effect compression and thus greatly improve the effect of pulse compression. If the chosen chirp value is appropriate, the effects of fiber loss can be almost completely canceled, leaving the light pulse to appear as if it were transmitted in a lossless fiber.