Analysis of fundamental limits to artificial-guide-star adaptive-optics-system performance for astronomical imaging.

Details Analysis of fundamental limits to artificial-guide-star adaptive-optics-system performance for astronomical imaging. Analysis of fundamental limits to artificial-guide-star adaptive-optics-system performance for astronomical imaging.

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994josaa..11..277f&link_type=abstract

Journal of the Optical Society of America A, Vol. 11, No. 1, p. 277 - 287

Physics

Optics

37

Adaptive Optics: Guide Stars

Scientific paper

The concept of using the atmospheric backscatter from a pulsed laser as an artificial guide star (AGS) for an adaptive-optics system in an astronomical telescope is analyzed. The extent to which such an AGS can be used to provide the information that is needed for adaptive-optics-system compensation of a wave front that is distorted by propagation through the atmosphere is studied. Attention is directed to the effect of focus anisoplanatism, the measurement error that is introduced when the probe light from the AGS at a finite range travels a different path than does the light from an astronomical object at a larger (infinite) range.

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