泵浦波长对光子晶体光纤中飞秒脉冲压缩的影响

J4 ›› 2010, Vol. 27 ›› Issue (3): 325-330.

泵浦波长对光子晶体光纤中飞秒脉冲压缩的影响

李爱萍^1,2,纪延俊¹,王安全¹

1滨州学院物理与电子科学系滨州 256603;
2滨州学院理论物理研究所滨州 256603

收稿日期:2009-12-14 修回日期:2010-02-28 出版日期:2010-05-28 发布日期:2010-05-11
通讯作者: 郑义，男，教授、博士生导师，主要从事全固态激光技术、非线性光学频率变换、光通信器件与技术等方面的研究与教学。 E-mail:yzheng@zzu.edu.cn
作者简介:李爱萍，女，1982年6月生，email:liaiping888@163.com。
基金资助:
滨州学院科研基金资助项目(Bzxykj0812)

Effect of pump wavelengths on femtosecond pulse compression in photonic crystal fibers

LI Ai-Ping^1,2, Ji-Yan-Jun¹, WANG An-Quan¹

1 Department of Physics, Binzhou University, Binzhou 256603, China;
2 Institute for Theoretical Physics, Binzhou University, Binzhou 256603, China

Received:2009-12-14 Revised:2010-02-28 Published:2010-05-28 Online:2010-05-11

摘要/Abstract

摘要：

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。

关键词: 非线性光学∣光子晶体光纤∣对称分布傅立叶法∣脉冲压缩

Abstract:

A theoretical investigation with the method of split-step Fourier is presented on the nonlinear propagation and pulse compression of a femtosecond laser pulse at the anomalous region in a photonic crystal fiber. The effect of different pump wavelengths on nonlinear propagation and compression of ultra-short pulse is simulated and analyzed. It was concluded that the compression factor and peak power are the best, and the optimum fiber length is the shortest, while the quality factor is proper with the pump wavelength of 1000nm. And the growth ratio of the compression factor is maximal. By using proper pump wavelengths, compression factor, quality factor, peak power can be increased, while the optimum fiber length is decreased.

Key words: nonlinear optics∣photonic crystal fiber∣method of symmetrical split-step Fourier∣pulse compression

李爱萍纪延俊王安全. 泵浦波长对光子晶体光纤中飞秒脉冲压缩的影响[J]. J4, 2010, 27(3): 325-330.

LI Ai-Ping, Ji-Yan-Jun, WANG An-Quan. Effect of pump wavelengths on femtosecond pulse compression in photonic crystal fibers[J]. J4, 2010, 27(3): 325-330.

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