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28 June 2006 MANU-CHAO: a laboratory ground-layer adaptive optics experiment
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We present a laboratory setup of a Ground-Layer Adaptive Optics system. This system is a scaled-down version of the MCAO system of MAD (a MCAO system for the VLT) / LINC-NIRVANA (a Fizeau Imager for the LBT) and measures the wavefront aberrations with 4 pyramids in a layer-oriented fashion with optical co-addition. The laboratory setup contains besides the wavefront-sensing unit a telescope-simulator, a dynamic turbulence generator and a Deformable Mirror for the wavefront correction. We describe the overall system and its single components, open- and closed-loop measurements of the characteristics of a system working in GLAO mode and first results when using a Kalman filter for the control of the wavefront reconstruction process.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sebastian E. Egner, Wolfgang Gaessler, Roberto Ragazzoni, Brice LeRoux, T. M. Herbst, J. Farinato, E. Diolaiti, and C. Arcidiacono "MANU-CHAO: a laboratory ground-layer adaptive optics experiment", Proc. SPIE 6272, Advances in Adaptive Optics II, 62724X (28 June 2006);


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