Monirabbasi Salman, Gibson Steve
Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, California 90095-1597, USA.
J Opt Soc Am A Opt Image Sci Vis. 2010 Nov 1;27(11):A84-96. doi: 10.1364/JOSAA.27.000A84.
This paper presents results from an adaptive optics experiment in which an adaptive control loop augments a classical adaptive optics feedback loop. Closed-loop wavefront errors measured by a self-referencing interferometer are fed back to the control loops, which drive a membrane deformable mirror to correct the wavefront. The paper introduces new frequency-weighted deformable mirror modes used as the control channels and new wavefront sensor modes for analyzing the performance of the control loops. The corrected laser beam also is imaged by a diagnostic target camera. The experimental results show reduced closed-loop wavefront errors and correspondingly sharper diagnostic target images produced by the adaptive control loop as compared with the classical AO loop.
本文介绍了一项自适应光学实验的结果，在该实验中，一个自适应控制回路增强了经典的自适应光学反馈回路。通过自参考干涉仪测量的闭环波前误差被反馈到控制回路，该控制回路驱动膜片变形镜来校正波前。本文介绍了用作控制通道的新型频率加权变形镜模式以及用于分析控制回路性能的新型波前传感器模式。校正后的激光束也由诊断目标相机成像。实验结果表明，与经典自适应光学回路相比，自适应控制回路产生的闭环波前误差减小，相应地诊断目标图像更清晰。
