New modal wave-front sensor: a theoretical analysis
New modal wave-front sensor: a theoretical analysis
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DOI：
10.1364/josaa.17.001098
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发表时间：
2000-06-01
影响因子：
1.9
通讯作者：
Wilson, T
中科院分区：
文献类型：
--
作者：
Neil, MAA;Booth, MJ;Wilson, T
我们提出了一种新的设计模式波前传感器能够直接测量Zernike组件的畸变波前。该传感器表现出良好的线性度为小的像差幅度，是特别适合于集成在一个闭环自适应系统。我们引入了一个灵敏度矩阵，并表明它是稀疏的，我们推导出的条件指定哪些元素必然为零。传感器可以是时间或空间复用的，前者使用可重构光学元件，后者使用数值优化的二元光学元件。不同的优化方案进行了讨论，并比较其性能。(C)2000美国光学学会[S 0740 -3232（00）00206-4]。
We present a new design of a modal wave-front sensor capable of measuring directly the Zernike components of an aberrated wave front. The sensor shows good linearity for small aberration amplitudes and is particularly suitable for integration in a closed-loop adaptive system. We introduce a sensitivity matrix and show that it is sparse, and we derive conditions specifying which elements are necessarily zero. The sensor may be temporally or spatially multiplexed, the former using a reconfigurable optical element, the latter using a numerically optimized binary optical element. Different optimization schemes are discussed, and their performance is compared. (C) 2000 Optical Society of America [S0740-3232(00)00206-4].