啁啾脉冲参量放大特性的数值模拟研究
Numerical studies of characteristic of optical parametric chirped pulse amplification
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摘要: 根据啁啾脉冲激光参量放大技术,数值模拟了光参量放大在啁啾脉冲放大中的应用。研究啁啾脉冲参量放大增益及时间特性,特别是在大信号注入与小信号注入两种有代表意义的情况下,详细地分析了群速度失配、相位失配对放大过程的影响。研究了泵浦光脉冲与信号光脉冲的时间同步要求,讨论了放大系统的稳定性。Abstract: Based on the theory of chirped-pulse parametric amplification, the application of optical parametric amplification in chirped-pulse amplification is simulated. Gain and temporal characteristic of optical parametric chirped-pulse amplification is studied, especially in the small signal-condition and the large signal-condition. The infection of the group-velocity mismatch and the phase-velocity mismatch in the process of the amplification are discussed respectively. The request of synchronization between pump-pulse and signal-pulse is taked into account. The stability of the system is evaluated.
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Key words:
- chirped-pulse amplification /
- optical parametric amplification /
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