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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
Title

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 für Optronik, Systemtechnik und Bildauswertung IOSB  
Gladysz, Szymon  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Stein, Karin  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Osten, Wolfgang
Journal
Applied optics  
DOI
10.1364/AO.425397
Language
English
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
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