Noise propagation for multiconjugate adaptive optics system

Thierry Fusco; Jean-Marc Conan; Vincent Michau; Gerard Rousset

doi:10.1117/12.454411

Abstract

We study the noise propagation for MultiConjugate Adaptive Optics (MCA)) systems working with Shack-Hartmann wavefront sensors (WFS). Two approaches are considered to control the deformable mirrors using WFS data: a classical Least Square approach and a Maximum A Posteriori (MAP) estimator. Analytical results, based on a Fourier transform analysis, allow us to study and quantify the reconstruction phase error for the two estimators. Consequences of the noise propagation on system design and performance is analyzed.

Citation Download Citation

Thierry Fusco, Thierry Fusco, Jean-Marc Conan, Jean-Marc Conan, Vincent Michau, Vincent Michau, Gerard Rousset, Gerard Rousset, } "Noise propagation for multiconjugate adaptive optics system", Proc. SPIE 4538, Optics in Atmospheric Propagation and Adaptive Systems IV, (29 January 2002); doi: 10.1117/12.454411; https://doi.org/10.1117/12.454411

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