Article Dans Une Revue Optics Letters Année : 2005

Closed-loop experimental validation of the spatially filtered Shack-Hartmann concept

T. Fusco
C. Petit
  • Fonction : Auteur
G. Rousset
  • Fonction : Auteur
J.-M. Conan
  • Fonction : Auteur

Résumé

An experimental validation of the spatially filtered Shack-Hartmann concept (F-SH) is presented that allows aliasing effects to be decreased. This effect is studied by use of an adaptive optical testbed with a focal plane pinhole in front of the wave-front sensor. First, the ability to close the loop on turbulence is demonstrated. Then the performance gain conferred by the device is quantified and compared with end-to-end simulation results. Another property of the F-SH concept, i.e., the reduction of the waffle modes, is highlighted.

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Dates et versions

hal-00398152 , version 1 (24-06-2009)

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T. Fusco, C. Petit, G. Rousset, J.-M. Conan, J.-L. Beuzit. Closed-loop experimental validation of the spatially filtered Shack-Hartmann concept. Optics Letters, 2005, 30, pp.1255-1257. ⟨10.1364/OL.30.001255⟩. ⟨hal-00398152⟩
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