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Proceedings Paper

Scintillation-resistant wavefront sensing based on a multi-aperture phase reconstruction (MAPR) technique
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Paper 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.

Paper Details

Date Published: 25 February 2012
PDF: 9 pages
Proc. SPIE 8238, High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI, 82380L (25 February 2012); doi: 10.1117/12.906080
Show Author Affiliations
Mathieu Aubailly, Univ. of Maryland, College Park (United States)
Mikhail A. Vorontsov, Univ. of Dayton (United States)
Jony Jiang Liu, U.S. Army Research Lab. (United States)


Published in SPIE Proceedings Vol. 8238:
High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI
Steven J. Davis; Michael C. Heaven; J. Thomas Schriempf, Editor(s)

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