27 March 2003 Analysis of adaptive correction efficiency with account of limitations induced by Shack-Hartmann sensor
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Proceedings Volume 5026, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean; (2003); doi: 10.1117/12.497203
Event: Ninth Joint International symposium on Atmospheric and Ocean Optics, 2002, Tomsk, Russian Federation
Abstract
Correction for turbulent distortions with an adaptive optics system including Shack-Hartmann sensor is considered in the paper. Efficiency of control was analyzed under conditions of singular points development in a wavefront of a laser beam. It was shown that the presence of dislocations cuases the discrepancy of wavefront detection by the sensor and as a consequence leads to the control instabilities. It was also shown that dislocations appear mainly in the peripheral regions of the beam. Using this feature and optimizing the size of the sensor the stable adaptive control could be achieved in an adaptive optics system.
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Nailya Makenova, Feodor Yu. Kanev, Vladimir P. Lukin, "Analysis of adaptive correction efficiency with account of limitations induced by Shack-Hartmann sensor", Proc. SPIE 5026, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean, (27 March 2003); doi: 10.1117/12.497203; https://doi.org/10.1117/12.497203
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KEYWORDS
Sensors

Wavefronts

Wavefront sensors

Adaptive optics

Turbulence

Adaptive control

Atmospheric propagation

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