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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 67, Iss. 3 — Mar. 1, 1977
  • pp: 306–314

The multidither principle in adaptive optics

T. R. O’Meara  »View Author Affiliations


JOSA, Vol. 67, Issue 3, pp. 306-314 (1977)
http://dx.doi.org/10.1364/JOSA.67.000306


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Abstract

Coherent optical adaptive techniques (COAT) offer promise for overcoming the deleterious effects of phase distortions experienced by optical beams propagating through distorting optics or via a turbulent and absorbing atmosphere. The theory of four classes of such systems, which employ similar multidither principles, is explored. Many modes of operating these systems are briefly reviewed and a detailed analysis of the most widely employed—a glint referencing system with sinusoidal dithers—is developed. A servo signal-to-noise analysis indicates how the optimum choice of dither magnitude depends on the system noise.

© 1977 Optical Society of America

Citation
T. R. O’Meara , "The multidither principle in adaptive optics," J. Opt. Soc. Am. 67, 306-314 (1977)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-67-3-306

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