强激光与粒子束2013，Vol.25Issue(5)：1120-1124,5.DOI:10.3788/HPLPB20132505.1120
激光能量叠加过程中对准精度对焦斑的影响
Effect of alignment accuracy on focal spot during beam superposition process
摘要
Abstract
Multi-beam combination is an effective way to improve the laser output power. In this paper beam alignment influences on the character of focal spot in energy synthetic cases are discussed. By using two beams with rectangular aperture, we analyze the focal spot characteristics of the two beams in different alignment cases. When the two beams are completely aligned, their focal spots overlap completely, and the focal spot energy is the sum of the two beams'. We also discuss three common alignment errors, and compare their influences on the character of focal spot in the actual beam alignment system. ZEMAX software is used to simulate the design system and the results are proved by experiments. The results show that the component position error will reduce the energy and increase the root-mean-square radius of focal spot.关键词
高功率激光/能量叠加/对准精度/焦斑半径/能量集中度Key words
high-power laser/energy superposition/alignment accuracy/focal spot radius/energy concentration分类
信息技术与安全科学引用本文复制引用
彭龙瑶,赵雅慧,张蓉竹..激光能量叠加过程中对准精度对焦斑的影响[J].强激光与粒子束,2013,25(5):1120-1124,5.基金项目
国家高技术发展计划项目 （）
