强激光与粒子束2012，Vol.24Issue(7)：1691-1694,4.DOI:10.3788/HPLPB20122407.1691
腔内双压电变形镜光强分布优化
Optimization of beam intensity distributions with intracavity bimorph deformable mirror
摘要
Abstract
An intracavity adaptive optics system is presented for optimizing beam intensity pro/ites of an flashlamp-pumped Nd: YAG laser. The rear mirror of the laser is replaced by a 20-element bimorph deformable mirror controlled by a stochastic parallel gradient decent algorithm aiming at achieving more concentrated power distribution in the far-field. Experimental results demonstrate that ihis system effectively transforms the far-fieid intensity distribution with multipJe Jobes into a single bright lobe within only about 20 s, and the peak intensity is improved up to 6 times. The output power can be increased from 0. 006-0. 051 W to 0. 330 W when large misalignment exists. The effectiveness of the proposed system is demonstrated by the above experimental results.关键词
双压电变形镜/固体激光器/自适应光学/随机并行梯度下降算法Key words
bimorph deformable mirror/ solid-state lasers adaptive optics/ stochastic parallel gradient decent algorithm分类
信息技术与安全科学引用本文复制引用
董理治,雷翔,刘文劲,杨平,晏虎,许冰..腔内双压电变形镜光强分布优化[J].强激光与粒子束,2012,24(7):1691-1694,4.基金项目
国家自然科学基金项目(60978049,10974202) （60978049,10974202）
中国科学院创新基金项目(CXJJ-10-S01) （CXJJ-10-S01）
