摘要
推演了用于计算机快速调整的巨型激光器光路自动准直控制数学模型,分析了ICF准直光路的光学特性及光路调整特点,据此求解出了准直控制的输入偏差量和输出控制量之间的数学模型.该模型在某大型激光装置的光路自动准直中得以实际应用,八路主放大级1～2程光路的准直时间<3min,3～4程光路的准直时间<8min,主放大级输出光束近场准直准确度优于0.3%,远场指向的准确度优于0.3″RMS(均方根准确度).
The mathematical model of beam automatic alignment of high power laser-fusion facility is deduced,the optical and adjusting character of the alignment beam pass is analyzed. The mathematical model that describe the relationship between beam image offset and the control.output parameter of the automatic alignment control system is worked out. This model is applied in the beam automatic alignment of SG-llI prototype,the used time is less than 3 minute for 142 beam pass and less than 8 minute for 3~ 4 beam pass, the alignment accuracy of the main amplifier output beam is less than 0. 3% of the beam aperture in near field and less than 0.3″in direction（root mean square）.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2008年第12期2534-2538,共5页
Acta Photonica Sinica
基金
国家863高技术研究与发展计划(051Z331BOA)资助
关键词
光路准直
数学模型
光学特性
电动反射镜
Barn alignment
Mathematical model
Optical charactic
Electrical-driven reflector
