Overcoming the perspective elongation effects in laser-guide-star-aided adaptive optics

Details Overcoming the perspective elongation effects in laser-guide-star-aided adaptive optics Overcoming the perspective elongation effects in laser-guide-star-aided adaptive optics

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apopt..31.6592b&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 31, no. 31, p. 6592-6594.

Physics

Optics

5

Adaptive Optics, Laser Guidance, Spaceborne Telescopes, Star Trackers, Elongation, Transmitters

Scientific paper

A method of compensating for the perspective elongation effect, and thus of separating the laser transmitter(s) from the four Very Large Telescope (VLT) 8-m telescopes, is presented. The method involves tracking the instantaneous position of the laser guide star. For the initial N of about 200 VLT adaptive optics system, a single laser transmitting station is to place all four 8-m telescopes, and a substantial number of auxiliary telescope stations, within the 71-m range of a single laser transmission system.

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