摘要
通过在光程差中增加相位校正项,重新推导了更为完善的压缩器各阶色散解析式。并对压缩器的各阶色散作了光线追迹的模拟计算,得到与解析式完全一致的计算结果,从而验证了解析式的正确性。基于解析式和光线追迹的方法,更加系统完善地对比较常用的Offner展宽器的各阶色散进行了研究,分析了入射角、光栅与凹面镜距离对其各阶色散及剩余各阶色散的影响。同时,还对非匹配的展宽压缩系统的剩余色散的影响因素进行了讨论。
Dispersive formulas were deduced adding a phase correction term to the optical path difference, and the formulas were validated through ray tracing method. From both the ray tracing method and formulas, the stretcher model with Offner triplet stretcher were studied. The influences of the incident angle and the distance between the grating and the concave mirror were discussed. The residual dispersions of Offner triplet stretchers and a conjugate compressor systems of some grating-concave-mirror distances and incident angles were analyzed comparatively. The influences of unmatched gratings on dispersions were also presented.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2008年第11期1877-1882,共6页
High Power Laser and Particle Beams
基金
国家高技术发展计划项目
中国工程物理研究院基金资助课题(2007B08005)
关键词
啁啾脉冲放大
展宽器
压缩器
色散解析式
光线追迹
chirped pulse amplification
stretcher
compressor
dispersive formula
ray tracing
