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泵浦波长对光子晶体光纤中飞秒脉冲压缩的影响

, PP. 325-330

Keywords: 非线性光学∣光子晶体光纤∣对称分布傅立叶法∣脉冲压缩

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Abstract:

采用分布傅立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,在相同初始脉冲峰值功率条件下,泵浦波长为1000nm的脉冲压缩因子和峰值功率最大,最佳光纤长度最短,但品质因子适中,并且随着初始峰值的增大,其压缩因子增长幅度最大。合理选择泵浦波长,有利于增强压缩效果,提高脉冲压缩质量和峰值功率,使得最佳光纤长度减小。

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