Wavefront sensorless adaptive optics for large aberrations
Wavefront sensorless adaptive optics for large aberrations
复制标题
DOI：
10.1364/ol.32.000005
复制
发表时间：
2007-01-01
期刊：
影响因子：
3.6
通讯作者：
Booth, Martin J.
中科院分区：
文献类型：
--
作者：
Booth, Martin J.
在一些自适应光学系统中，不通过使用波前传感器而是通过自适应校正元件的顺序优化来确定像差。控制这种系统的有效计划是必不可少的，如果他们是有效的。介绍了一种允许有效测量由适当的一系列模式表示的大振幅波前像差的方案。该方案使用基于均方根光斑半径（或焦斑二阶矩）的优化度量和使用适合于表示横向像差的多项式的像差扩展。实验校正的N个像差模式的证明与N + 1光电探测器测量的最小值。几何光学基础意味着该方案可以扩展到任意大的像差。(c)2006年美国光学学会。
In some adaptive optics systems the aberration is determined not by using a wavefront sensor but by sequential optimization of the adaptive correction element. Efficient schemes for the control of such systems are essential if they are to be effective. A scheme is introduced that permits the efficient measurement of large amplitude wavefront aberrations that are represented by an appropriate series of modes. This scheme uses an optimization metric based on the root-mean-square spot radius (or focal spot second moment) and an aberration expansion using polynomials suited to the representation of lateral aberrations. Experimental correction of N aberration modes is demonstrated with a minimum of N + 1 photodetector measurements. The geometrical optics basis means that the scheme can be extended to arbitrarily large aberrations. (c) 2006 Optical Society of America.