Paper
24 February 2012 Scintillation-resistant wavefront sensing based on a multi-aperture phase reconstruction (MAPR) technique
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Abstract
A scintillation-resistant sensor that allows retrieval of an input optical wave phase using a multi-aperture phase reconstruction (MAPR) technique is introduced and analyzed. The MAPR sensor is based on a low-resolution lenslet array in the classical Shack-Hartmann arrangement and two high-resolution photo-arrays for simultaneous measurements of pupil- and focal-plane intensity distributions which are used for retrieval of wavefront phase in a two stage process: (a) phase reconstruction inside the sensor pupil sub-regions corresponding to lenslet sub-apertures, and (b) recovery of sub-aperture averaged phase components (piston phases). Numerical simulations demonstrate the efficiency of the MAPR technique in conditions of strong intensity scintillations and presence of wavefront branch points.
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Mathieu Aubailly, Mikhail A. Vorontsov, and Jony Jiang Liu "Scintillation-resistant wavefront sensing based on a multi-aperture phase reconstruction (MAPR) technique", Proc. SPIE 8238, High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI, 82380L (24 February 2012); https://doi.org/10.1117/12.906080
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KEYWORDS
Sensors

Wavefront sensors

Scintillation

Wavefronts

Atmospheric propagation

Wave propagation

Reconstruction algorithms

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