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Proceedings Paper

Holographic wavefront sensor based on Karhunen-Loève decomposition
Author(s): Esdras Anzuola; Andreas Zepp; Szymon Gladysz; Karin Stein
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Paper Abstract

In this paper we introduce the use of Karhunen-Loève functions as a basis set to decompose atmospheric phase aberrations in a digital holographic wavefront sensor (HWS). We show that the intermodal crosstalk when using Karhunen-Loève functions is reduced in comparison to the Zernike decomposition. Additionally, the sensor’s response showed an improved linearity and better robustness to scintillation. Intermodal crosstalk remains a significant problem for this sensor but operation of an adaptive optics system based on HWS is less challenging when using Karhunen-Loève functions instead of Zernike polynomials.

Paper Details

Date Published: 19 September 2016
PDF: 7 pages
Proc. SPIE 9979, Laser Communication and Propagation through the Atmosphere and Oceans V, 99790X (19 September 2016); doi: 10.1117/12.2236341
Show Author Affiliations
Esdras Anzuola, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Andreas Zepp, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Szymon Gladysz, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Karin Stein, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)


Published in SPIE Proceedings Vol. 9979:
Laser Communication and Propagation through the Atmosphere and Oceans V
Alexander M. J. van Eijk; Christopher C. Davis; Stephen M. Hammel, Editor(s)

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