Wavefront curvature sensing on extended arbitrary scenes: simulation results

Renate Kupke; Francois J. Roddier; Donald L. Mickey

doi:10.1117/12.321700

11 September 1998 Wavefront curvature sensing on extended arbitrary scenes: simulation results

Renate Kupke, Francois J. Roddier, Donald L. Mickey

Proceedings Volume 3353, Adaptive Optical System Technologies; (1998) https://doi.org/10.1117/12.321700
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

We describe and evaluate the performance of a wavefront sensor based on curvature sensing which can be used to detect static aberrations given an extended reference source. The description includes a full mathematical treatment of the sensor signal, as well as how this signal is relate to the Laplacian of the wavefront. Evaluation of the technique is performed with computer simulations. A Monte-Carlo simulation is utilized to evaluate the performance of the technique in the presence of noise. The sensor was found to provide accurate measurement of the wavefront coefficients on high-contrast extended objects. It behaves well in the presence of a field stop, and in the presence of additive Gaussian noise.

Citation Download Citation

Renate Kupke, Francois J. Roddier, and Donald L. Mickey "Wavefront curvature sensing on extended arbitrary scenes: simulation results", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); https://doi.org/10.1117/12.321700

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