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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 11, Iss. 1 — Jan. 1, 1994
  • pp: 288–309

Laser-guide-star systems for astronomical applications

Ronald R. Parenti and Richard J. Sasiela  »View Author Affiliations


JOSA A, Vol. 11, Issue 1, pp. 288-309 (1994)
http://dx.doi.org/10.1364/JOSAA.11.000288


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Abstract

With computational techniques developed in the investigation of high-energy laser-beam-control systems, a set of concise analytic models describing the essential properties of a laser-guide-star phase-conjugation system has been assembled. With the aid of these models an optimization strategy for mating adaptive optics to a 4-m-class optical telescope is evolved, and it is shown that such a system might be expected to improve the effective atmospheric seeing conditions by nearly a factor of 10 within the isoplanatic patch of the turbulence probe. For operation at visible wavelengths, a compensation system having ~300 actuators and a closed-loop bandwidth of 20 Hz is recommended. All the key hardware components have already been built and tested, with the exception of a suitable laser source for high-repetition-rate illumination of the Earth’s sodium layer.

© 1994 Optical Society of America

History
Original Manuscript: March 19, 1992
Revised Manuscript: December 21, 1992
Manuscript Accepted: January 11, 1993
Published: January 1, 1994

Citation
Ronald R. Parenti and Richard J. Sasiela, "Laser-guide-star systems for astronomical applications," J. Opt. Soc. Am. A 11, 288-309 (1994)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-11-1-288

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