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Approaches to cross-talk noise reduction in modal holographic wavefront sensors
Author(s): Kseniya Gavril'eva; Alina Gorelaya; Evgenii Fedorov; Rilond Pattia Matital; Vyacheslav Orlov; Elena Shubenkova; Vladimir Venediktov
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Paper Abstract

Many areas of optical science and technology require fast and accurate measurement of the radiation wavefront shape. Today there are known a lot of wavefront sensor (WFS) techniques, and their number is growing up. The last years have brought a growing interest in several schematics of WFS, employing the holography principles and holographic optical elements (HOE). Some of these devices are just the improved versions of the standard and most popular Shack-Hartman WFS, while other are based on the intrinsic features of HOE. A holographic mode wavefront sensor is proposed, which makes it possible to measure up to several tens of wavefront modes. The increase in the number of measured modes is implemented using the conversion of a light wave entering the sensor into a wide diffuse light beam, which allows one to record a large number of holograms, each intended for measuring one of the modes

Paper Details

Date Published: 9 May 2018
PDF: 11 pages
Proc. SPIE 10680, Optical Sensing and Detection V, 106802O (9 May 2018); doi: 10.1117/12.2306472
Show Author Affiliations
Kseniya Gavril'eva, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Alina Gorelaya, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Evgenii Fedorov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Rilond Pattia Matital, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Vyacheslav Orlov, ITMO Univ. (Russian Federation)
Elena Shubenkova, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Vladimir Venediktov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Saint Petersburg State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10680:
Optical Sensing and Detection V
Francis Berghmans; Anna G. Mignani, Editor(s)

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