Methods for the characterization of deformable membrane mirrors
2005; Optica Publishing Group; Volume: 44; Issue: 24 Linguagem: Inglês
10.1364/ao.44.005131
ISSN0003-6935
AutoresMartin J. Booth, Tony Wilson, Hong‐Bo Sun, Taisuke Ota, Satoshi Kawata,
Tópico(s)Advanced Surface Polishing Techniques
ResumoWe 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 fringe analysis and phase-unwrapping algorithms. We discuss how the choice of singular values can be used to control the pseudoinversion of the control matrix.
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