Laser guide-star systems for astronomical applications.

Details Laser guide-star systems for astronomical applications. Laser guide-star systems for astronomical applications.

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994josaa..11..288p&link_type=abstract

Journal of the Optical Society of America A, Vol. 11, No. 1, p. 288 - 309

Physics

Optics

43

Adaptive Optics: Guide Stars

Scientific paper

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.

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