Optimization design of 1 J-level optical parametric chirped-pulse amplification system

被引：0
|
作者：
Wang X. [1 ]
Dai Y. [1 ]
Wang T. [1 ]
Ji L. [1 ]
机构：
[1] Shanghai Institute of Laser Plasma, China Academy of Engineering Physics
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2011年 / 38卷 / 07期
关键词：
Nonlinear optics; Numerical simulation; Parametric amplification; Stability;
D O I：
10.3788/CJL201138.0702009
中图分类号：
学科分类号：
摘要：
Using a three-dimensional spatial and temporal numerical model, optimization design of 1 J-level optical parametric chirped-pulse amplification system with type I noncollinear phase matching structure is discussed. With the two LiB3O5(LBO) preamplifiers and one YCa4O(BO3)3(YCOB) power amplifier, highly stable, high-conversion-efficiency and good beam quality signal output is got by shaping the pump beam's spatiotemporal profiles to super-Gaussian shapes, using the walk-off compensation structure and choosing the crystal's length on each stage. This design can meet the requirement of SG-II upgrade project's front-end.
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