KDP晶体面形控制夹持方案的分析及优化  

Analysis and Optimization of Clamping Schemes in Controlling KDP Crystal Surface

作　　者：贾凯[1,2] 叶朗[1] 崔凯洪[2] 徐攀[2] 袁晓东[1] 张彬[2] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]四川大学电子信息学院,成都610041

出　　处：《光电工程》2012年第2期104-108,117,共6页Opto-Electronic Engineering

摘　　要：本文提出了一种能较大程度优化大口径晶体面形的夹持方案,同时分析对比了优化方案与常规方案下重力作用对KDP晶体面形和三倍频转换效率的影响。研究结果表明:优化方案能极大的改善重力对KDP晶体面形的影响;同时当基频光光强为5.5GW/cm2时,优化方案较之三种常规方案的三倍频转换效率分别提高了6.2%、9.5%和6.5%。A new kind of clamping scheme presented could make the crystal surface optimized, and numerical calculation is used to analyze the influence of crystal gravity sag on KDP surface and conversion efficiency by adopting the optimized scheme as well as routine schemes. The results show that optimized clamping scheme could improve the effects of KDP crystal gravity obviously. When the intensity of fundamental light is 5.5 GW/cm2, compared with routine schemes, the conversion efficiencies by adopting the optimized scheme increase 6.2%, 9.5% and 6.5%, respectively.

关 键 词：KDP晶体 附加面形 面形优化 转换效率 

分 类 号：O437.1[机械工程—光学工程]