Lidar-generated artificial guidestars for atmospheric turbulence compensation.

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The idea of using lasers to create artificial guide stars for controlling an adaptive imaging system for ground-based telescopes has been extended by identifying the key engineering parameters that optimize the performance of such a system. An artificial guide star created in the mesospheric sodium layer using a tunable-dye laser has been photographed. A lidar system was installed in an observatory dome at the Mauna Kea Observatory with the laser mounted adjacent to a 0.6-m telescope. The collimated laser beam was projected toward the zenith with its own separate optical system. The laser guide spot was imaged by a 500 × 500 CCD array detector mounted at the Cassegrain focus of the U. Hawaii 2.2-m telescope which was located 117 m southeast of the laser. A photon count contour plot of an 8-min exposure of the laser guide spot is shown, and the image characteristics are discussed.

Original languageEnglish (US)
Title of host publicationCLEO 88 Conf Lasers Electro Opt 1988 Tech Dig Ser Vol 7
PublisherPubl by IEEE
Pages162, 163
ISBN (Print)155752033X
StatePublished - 1988

Publication series

NameCLEO 88 Conf Lasers Electro Opt 1988 Tech Dig Ser Vol 7

ASJC Scopus subject areas

  • Engineering(all)


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