Bootstrapping an adaptive optics loop

Jacopo Farinato; Enrico Marchetti; Roberto Ragazzoni

doi:10.1117/12.269120

21 March 1997 Bootstrapping an adaptive optics loop

Jacopo Farinato, Enrico Marchetti, Roberto Ragazzoni

Author Affiliations +

Proceedings Volume 2871, Optical Telescopes of Today and Tomorrow; (1997) https://doi.org/10.1117/12.269120
Event: Optical Telescopes of Today and Tomorrow, 1996, Landskrona/Hven, Sweden

Abstract

Switching-on an adaptive optics loop, the system usually rapidly locks the target in the correction mode. When the sky background contribution is not negligible, the SNR may depend upon the correction status. While in an already closed loop, the SNR could be high enough to maintain the situation of good correction by the adopt system, during the switching-on phase, this condition could be far from true, because it is possible that the SNR isn't enough to lock the loop, starting from the open loop situation. We discuss this problem (called the bootstrap problem for adaptive optics) with particular attention on some filtering system working in the described situation and tuned to solve the problem.

Citation Download Citation

Jacopo Farinato, Enrico Marchetti, and Roberto Ragazzoni "Bootstrapping an adaptive optics loop", Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); https://doi.org/10.1117/12.269120

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