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Influence of bandwidth error on the performance of adaptive optics systems for uncooperative beacons

 
: Toselli, Italo; Gladysz, Szymon

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Volltext ()

Applied optics 60 (2021), Nr.22, S.F118-F125
ISSN: 0003-6935
ISSN: 1539-4522
ISSN: 1559-128X
ISSN: 2155-3165
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IOSB ()

Abstract
We discuss the capability of adaptive optics to increase the performance of laser systems operating in atmospheric turbulence. Our approach is based on the Zernike filter functions, Taylor’s frozen-flow hypothesis, and bandwidth limitations of a realistic servo control system. System performance is analyzed in terms of the Strehl ratio on target. Our results for plane-wave geometry indicate that adaptive optics can be effective even when engaging fast moving targets and that moderate closed-loop bandwidths of ∼100Hz would suffice for most analyzed scenarios. Applications of interest are beam delivery systems and free-space optical communications.

: http://publica.fraunhofer.de/dokumente/N-638790.html