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  4. Optimal, blind-search modal wavefront correction in atmospheric turbulence. Part I: Simulations
 
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2021
Journal Article
Titel

Optimal, blind-search modal wavefront correction in atmospheric turbulence. Part I: Simulations

Abstract
Modal control is an established tool in adaptive optics. It allows not only for the reduction in the controllable degrees of freedom, but also for filtering out unseen modes and optimizing gain on a mode-by-mode basis. When Zernike polynomials are employed as the modal basis for correcting atmospheric turbulence, their cross-correlations translate to correction errors. We propose optimal modal decomposition for gradient-descent-based wavefront sensorless adaptive optics, which is free of this problem. We adopt statistically independent Karhunen-Loève functions for iterative blind correction and analyze performance of the algorithm in static as well as in dynamic simulated turbulence conditions.
Author(s)
Segel, Max
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB
Gladysz, Szymon
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB
Zeitschrift
Optics Express
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DOI
10.1364/OE.408682
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Externer Link
Language
English
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Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB
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