| 啁啾脉冲激光放大的数值分析 |
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| 引用本文： | 杨建军,阮双琛,候洵. 啁啾脉冲激光放大的数值分析[J]. 强激光与粒子束, 1999, 11(2): 165-171 |
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| 作者姓名： | 杨建军 阮双琛 候洵 |
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| 作者单位： | 中科院西安光机所瞬态光学技术国家重点实验室，西安 710068 |
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| 摘 要： | 从Maxwell波动方程出发，建立了描述脉冲在啁啾放大系统中传播的非线性薛定谔方程;采用数值计算，系统地分析研究了放大过程中的各种效应对脉冲的影响，给出了啁啾脉冲在频域、时域内及放大压缩后脉冲信噪比的动态演化特征;讨论了展宽器附加色散量在放大过程中的影响。
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| 关 键 词： | 啁啾脉冲放大 增益窄化 自相位调制 增益饱和效应 |
| 收稿时间： | 1900-01-01; |
NUMERICAL CALCULATION ON CHIRPED PULSE AMPLIFICATION |
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| Abstract: | A theoretical model of chirped pulse amplification is presented, and based on which we give the numerical analysis on the evolution of stretched pulse in the amplifier. Amplitude and phase modulation including: gain narrowing, self phase modulation, gain saturation and higher order dispersions experienced by the pulse in the CPA system are responsible for the distortions on the temporal shape, power spectra and recompressed autocorrelation trace of the amplified pulse. In addition, for the first time the contribution of stretching chirps from the stretcher on the distortions of the pulse is studied in detail. |
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| Keywords: | chirped pulse amplification gain nairowing self phase modulation gain saturaition |
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