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Article Dans Une Revue Optics Letters Année : 2014

Sensing more modes with fewer sub-apertures: the LIFTed Shack-Hartmann wavefront sensor

Résumé

We propose here a novel way to analyze Shack-Hartmann wavefront sensor images in order to retrieve more modes than the two centroid coordinates per sub-aperture. To do so, we use the linearized focal-plane technique (LIFT) phase retrieval method for each sub-aperture. We demonstrate that we can increase the number of modes sensed with the same computational burden per mode. For instance, we show the ability to control a 21 x 21 actuator deformable mirror using a 10 x 10 lenslet array. (C) 2014 Optical Society of America
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Dates et versions

hal-01442006 , version 1 (20-01-2017)

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Serge Meimon, Thierry Fusco, Vincent Michau, Cedric Plantet. Sensing more modes with fewer sub-apertures: the LIFTed Shack-Hartmann wavefront sensor. Optics Letters, 2014, 39 (10), pp.2835--2837. ⟨10.1364/OL.39.002835⟩. ⟨hal-01442006⟩
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