Low order adaptive optics on Z-Beamlet using a single actuator deformable mirror
Low order adaptive optics on Z-Beamlet using a single actuator deformable mirror
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DOI：
10.1016/j.optcom.2006.02.029
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发表时间：
2006-08
影响因子：
2.4
通讯作者：
J. Schwarz;M. Ramsey;I. Smith;D. Headley;J. Porter
中科院分区：
文献类型：
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作者：
J. Schwarz;M. Ramsey;I. Smith;D. Headley;J. Porter
桑迪亚国家实验室的Z-Beamlet激光器可以每3- 4小时进行一次完整的系统拍摄。这种发射速率受到闪光灯泵浦的磷酸钕放大器板产生的热像差的限制。最低阶和最强的像差是圆柱形的。为此，研制了一种用于柱面像差校正的单驱动器变形镜组件。反射镜的性能进行了建模，使用有限元分析，并表现出良好的协议与推导的解析表达式。用干涉仪进行定量测量，并在Z-Beamlet激光系统中实现热透镜补偿，导致每2小时增加一次发射率。
The Z-Beamlet laser at Sandia National Laboratories can perform a full system shot every 3–4h. This shot rate is limited by thermal aberrations that result from the flashlamp pumped Nd:phosphate amplifier slabs. The lowest order as well as the strongest aberration is of cylindrical shape. Therefore, a single actuator deformable mirror assembly for correction of cylindrical aberration was developed. Mirror performance was modeled using finite element analysis and showed good agreement with derived analytical expressions. Quantitative measurements were performed with an interferometer and thermal lens compensation was achieved in the Z-Beamlet laser system leading to an increased shot rate of one in every 2h.