Automatic Alignment Technology in High Power Laser System

作者：Zhang Xin^*; Dai Wan jun; Wang Yuan cheng; Lian Bo; Yang Ying; Yuan Qiang; Deng Xue wei; Zhao Jun pu; Zhou Wei

来源：20th International Symposium on High Power Laser Systems and Applications (HPLS and A), 2014-08-25 To 2014-08-29.

DOI：10.1117/12.2065216

• Automatic alignment
• Cavity alignment
• High power laser system
• Multi-pass amplifier

The high power solid laser system is becoming larger and higher energy that requires the beam automatic alignment faster and higher precision to ensure safety running of laser system and increase the shooting success rate. This paper take SGIII laser facility for instance, introduce the basic principle of automatic alignment of large laser system. The automatic alignment based on digital image processing technology which use the imaging of seven-classes spatial filter pinholes for feedback to working. Practical application indicates that automatic alignment system of cavity mirror in SGIII facility can finish the work in 210 seconds of four bundles and will not exceed 270 seconds of all six bundles. The alignment precision promoted to 2.5% aperture from 8% aperture. The automatic alignment makes it possible for fast and safety running of lager laser system.

• 出版日期2015
• 单位中国工程物理研究院; 中国工程物理研究院激光聚变研究中心