Spherical aberration correction system using an adaptive optics deformable mirror
Spherical aberration correction system using an adaptive optics deformable mirror
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DOI：
10.1016/j.optcom.2006.01.026
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发表时间：
2006-07
影响因子：
2.4
通讯作者：
M. Schwertner;M. Booth;Takuo Tanaka;T. Wilson;S. Kawata
中科院分区：
文献类型：
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作者：
M. Schwertner;M. Booth;Takuo Tanaka;T. Wilson;S. Kawata
在闭环自适应光学系统中经常使用可变形膜反射镜来校正像差并改善图像质量。在某些应用中，仅校正一种类型的像差就足够了，可以简化反射镜的校准过程，并且可以将控制方案简化为快速前馈系统。针对这些情况，我们开发了一种易于实施、准确并可提供较大校正范围的程序。一个应用实例是三维光学存储器的写入和读出。这里，球面像差分量占主导地位，并且可以从聚焦深度推断。我们描述了新的校准和前馈控制方案的原理，并给出实验结果。
A deformable membrane mirror is often used in closed loop adaptive optics systems to correct for aberrations and improve image quality. In certain applications, the correction of only one type of aberration is sufficient, the calibration procedure of the mirror can be simplified and the control scheme can be reduced to a fast feed forward system. For these cases we developed a procedure that is easy to implement, accurate and delivers a large correction range. An application example is the writing and readout of three-dimensional optical memory. Here the spherical aberration component is dominant and can be inferred from the focussing depth. We describe the principle of the new calibration and feed forward control scheme and give experimental results.