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2 December 2014 Improvements on adaptive optics control approaches: experimental tests of wavefront correction forecasting
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Abstract
The FORS (closed loop forecasting system) control algorithm has been already successfully applied to improve the efficiency of a simulated adaptive optics (AO) system. To test its performance in real conditions, we implemented this algorithm in a hardware AO demonstrator, introducing controlled aberrations into the system. We present here the results of introducing into the system both a simple periodic defocus aberration and a real open loop defocus time sequence acquired at the vacuum tower telescope solar telescope. In both cases, FORS yields a significant performance increase, improving the stability of the system in closed-loop conditions and decreasing the amplitude of the residual uncorrected wavefront aberrations.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2015/$25.00 © 2015 SPIE
Dario Del Moro, Roberto Piazzesi, Marco Stangalini, Luca Giovannelli, and Francesco Berrilli "Improvements on adaptive optics control approaches: experimental tests of wavefront correction forecasting," Journal of Astronomical Telescopes, Instruments, and Systems 1(1), 019002 (2 December 2014). https://doi.org/10.1117/1.JATIS.1.1.019002
Published: 2 December 2014
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