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用计算机仿真分析了光学参量啁啾脉冲放大 (OPCPA)的特性及其影响因素 (如相位失配、高阶非线性效应等 ) .就脉冲放大机理、时间同步、光谱漂移、增益窄化等相似问题与现有的啁啾脉冲放大技术做了比较与讨论 .基于“神光 Ⅱ”装置 ,设计了飞秒拍瓦级OPCPA系统 ,以期望实现快点火 .
The characteristics of optical parametric chirped pulse amplification (OPCPA) and its influencing factors (such as phase mismatch, higher-order nonlinearity, etc.) are analyzed by computer simulation. The pulse amplification mechanism, time synchronization, spectral drift and gain narrowing are all similar The problem is compared with the existing chirped pulse amplification technology.And based on the “ShenGuang II” device, a femtosecond watt-level OPCPA system is designed to achieve fast ignition.