采用对称分步傅里叶方法数值模拟了飞秒光脉冲在光子晶体光纤反常色散区的非线性传输和压缩过程.计算和分析了不同泵浦波长对光子晶体光纤中超短脉冲传输和压缩的影响,结果表明,在相同初始峰值功率条件下,泵浦波长为1000 nm的脉冲可以获得更大的压缩因子、峰值功率和更短的最佳光纤长度,并且随着初始峰值功率的增大,其压缩因子和峰值功率增大,最佳光纤长度减小.合理选择泵浦波长和初始峰值功率,可以实现飞秒脉冲在光子晶体光纤中的有效压缩.
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