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  4. Optimization of the holographic wavefront sensor for open-loop adaptive optics under realistic turbulence. Pt.I: Simulations
 
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2021
Journal Article
Titel

Optimization of the holographic wavefront sensor for open-loop adaptive optics under realistic turbulence. Pt.I: Simulations

Abstract
The modal holographic wavefront sensor enables fast measurement of individual aberration modes without the need for time-consuming calculations. However, the measurement accuracy suffers greatly from intermodal crosstalk, caused when the wavefront contains more aberrations than the one to be measured. In this paper, we present sensor optimization to minimize this effect and show the improvement when using Karhunen-Lòeve instead of Zernike modes as the basis. Finally, we show in simulation that an open-loop adaptive optics system based on the optimized sensor can be used to correct the effect of realistic, dynamic atmospheric turbulence on a wavefront and increase its Strehl ratio significantly.
Author(s)
Zepp, Andreas
Fraunhofer-Institut fĂĽr Optronik, Systemtechnik und Bildauswertung IOSB
Gladysz, Szymon
Fraunhofer-Institut fĂĽr Optronik, Systemtechnik und Bildauswertung IOSB
Stein, Karin
Fraunhofer-Institut fĂĽr Optronik, Systemtechnik und Bildauswertung IOSB
Osten, Wolfgang
Zeitschrift
Applied optics
Thumbnail Image
DOI
10.1364/AO.425397
Language
English
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Fraunhofer-Institut fĂĽr Optronik, Systemtechnik und Bildauswertung IOSB
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