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Proceedings Paper

Limitations of adaptive control efficiency due to singular points in the wavefront of a laser beam
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Paper 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 causes 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.

Paper Details

Date Published: 20 March 2003
PDF: 8 pages
Proc. SPIE 4884, Optics in Atmospheric Propagation and Adaptive Systems V, (20 March 2003); doi: 10.1117/12.462425
Show Author Affiliations
Feodor Yu Kanev, Institute of Atmospheric Optics (Russia)
Vladimir P. Lukin, Institute of Atmospheric Optics (Russia)
Nailya Makenova, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 4884:
Optics in Atmospheric Propagation and Adaptive Systems V
Anton Kohnle; John D. Gonglewski, Editor(s)

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