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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsA. Kohnle, J.D. Gonglewski
Pages265-272
Number of pages8
Volume4884
DOIs
Publication statusPublished - 2002
EventOptics in Atmospheric Propagation and Adaptive Systems V - Agia Palagia, Crete, Greece
Duration: 24 Sep 200227 Sep 2002

Other

OtherOptics in Atmospheric Propagation and Adaptive Systems V
CountryGreece
CityAgia Palagia, Crete
Period24.9.0227.9.02

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Keywords

  • Adaptive control
  • Shack-Hartmann sensor
  • Singular points

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kanev, F., Lukin, V., & Makenova, N. A. (2002). Limitations of adaptive control efficiency due to singular points in the wavefront of a laser beam. In A. Kohnle, & J. D. Gonglewski (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4884, pp. 265-272) https://doi.org/10.1117/12.462425