| 飞秒激光脉冲序列互相关的数值模型与分析 |
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| 引用本文： | 许艳,周维虎,刘德明.飞秒激光脉冲序列互相关的数值模型与分析[J].中国激光,2011(11). |
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| 作者姓名： | 许艳 周维虎 刘德明 |
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| 作者单位： | 华中科技大学光电子科学与工程学院;江西理工大学应用科学学院;中国科学院光电研究院; |
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| 基金项目： | 国家自然科学基金(60937002); 北京市自然科学基金(4112065)资助课题 |
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| 摘 要： | 为研究飞秒激光超短脉冲序列在空气中传输的时间相干特性,根据飞秒脉冲序列的传播理论和空气折射率Ciddor公式,建立了飞秒激光脉冲序列间脉冲在空气中传播的互相关数值模型。根据该模型可以得到不同光谱分布、不同光程差和不同大气条件下的飞秒脉冲序列间脉冲的互相关图形。数值模拟结果表明随着脉冲间光程差的增大,由于色散的原因,互相关图形加宽和啁啾,并且峰能量减小;然而当光程差不变,仅改变大气条件时,互相关图形仅仅作线性移动,没有任何额外线性加宽或啁啾。飞秒光学频率梳具有非常高的时间相干性,并且飞秒脉冲间的互相关图形只取决于激光器光源的光谱分布。
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| 关 键 词： | 测量 飞秒激光 互相关 飞秒脉冲序列 |
Numerical Experiment and Analysis of Cross-Correlation between Pulses of Femtosecond Laser Sequence |
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| Xu Yan, Zhou Weihu Liu Deming College of Optoelectronic Science , Engineering,Huazhong University of Science , Technology,Wuhan,Hubei ,China College of Applied Science,Jiangxi University of Science , Technology,Ganzhou,Jiangxi ,China Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing ,China.Numerical Experiment and Analysis of Cross-Correlation between Pulses of Femtosecond Laser Sequence[J].Chinese Journal of Lasers,2011(11). |
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| Authors: | Xu Yan Zhou Weihu Liu Deming College of Optoelectronic Science Engineering Huazhong University of Science Technology Wuhan Hubei China College of Applied Science Jiangxi University of Science Technology Ganzhou Jiangxi China Academy of Opto-Electronics Chinese Academy of Sciences Beijing China |
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| Affiliation: | Xu Yan1,2,3 Zhou Weihu3 Liu Deming1 1College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China 2College of Applied Science,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China 3Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing 100094,China |
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| Abstract: | The numerical model of the cross-correlation between pulses of the femtosecond laser sequence propagating in air is developed to investigate the temporal coherence characteristic of the femtosecond laser ultrashort pulse sequence.The model is based on the propagation theory of the femtosecond pulse sequence and the refractive index of air Ciddor formula.The auto-correlation patterns between pulses of the femtosecond pulse sequence in different spectral distribution with different optical path differences un... |
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| Keywords: | measurement femtosecond laser cross-correlation femtosecond pulse sequence |
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