Methods for the characterization of deformable membrane mirrors

We demonstrate two methods for the characterization of deformable membrane mirrors and the training of adaptive optics systems that employ these mirrors. Neither method employs a wave-front sensor. In one case, aberrations produced by a wave-front generator are corrected by the deformable mirror by use of a rapidly converging iterative algorithm based on orthogonal deformation modes of the mirror. In the other case, a simple interferometer is used with ftinge analysis and phase-unwrapping algorithms. We discuss how the choice of singular values can be used to control the pseudoinversion of the control matrix. (c) 2005 Optical Society of America.

我们展示了两种用于表征可变形薄膜镜以及训练采用这些镜子的自适应光学系统的方法。两种方法都不使用波前传感器。在一种情况下，波前发生器产生的像差由可变形镜通过使用一种基于镜子正交变形模式的快速收敛迭代算法来校正。在另一种情况下，使用一个简单的干涉仪以及条纹分析和相位展开算法。我们讨论了如何利用奇异值的选择来控制控制矩阵的伪逆。（c）2005美国光学学会。