基于“神光-Ⅱ”装置的飞秒拍瓦级光学参量啁啾脉冲放大的特性分析与系统设计  

Numerical studies of characteristics and the design of 1PW optical parametric chirped pulse amplifier for the “Shenguang-Ⅱ” facility

作　　者：朱鹏飞[1] 钱列加[2] 薛绍林[3] 林尊琪[3] 

机构地区：[1]上海交通大学物理系,上海200240 [2]复旦大学光科学与工程系,上海200433 [3]中国科学院高功率激光物理国家重点实验室,上海光学精密机械研究所,上海201800

出　　处：《物理学报》2003年第3期587-594,共8页Acta Physica Sinica

基　　金：国家高技术研究发展计划 (批准号 :863 80 4 2 );国家自然科学基金 (批准号 :60 0 880 0 3 );国家重点基础研究发展规划项目 (批准号 :G19990 75 2 0 2 3 )资助的课题 ~~

摘　　要：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 .In this paper, the characteristics of optical parametric chirped pulse amplification(OPCPA) are numerically studied by a computer. The infection of the group velocity mismatch, the phase velocity mismatch, and the cubic nonlinearity in the process of amplification has been discussed respectively. The comparison between the OPCPA and the chirped pulse amplification(CPA) is made, such as of the mechanism of amplification, the synchronization, the red shift phenomenon, the gain narrowing effect, and so on. To realize the fast ignition of inertial confinement fusion, we have designed an OPCPA system for the “Shenguang Ⅱ” facility, which can generate pulse with a duration as short as 50fs and a power of multi petawatt.

关 键 词：“神光-Ⅱ”装置 飞秒拍瓦级 特性分析 系统设计 超短超强激光 啁啾脉冲放大 光学参量啁啾脉冲放大 数值模拟 

分 类 号：TN248[电子电信—物理电子学]