Physics – Optics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apopt..41.2219t&link_type=abstract
Applied Optics, vol. 41, iss. no. 12, p. 2219-2223
Physics
Optics
Adaptive Optics, Atmospheric Optics, Atmospheric Turbulence, Attitude (Inclination), Beams (Radiation), Imaging Techniques, Laser Beams, Telescopes, Wave Fronts
Scientific paper
A method that uses two quadrant detectors (QDs) for sensing wave-front tilt is described. The detectors are set at the front and back of the focal plane of the focusing optics. When the intensity distribution at the aperture of a telescope is not uniform because of atmospheric turbulence, the wave-front tilt can be measured more accurately with our two-QD method than with a conventional single-focal-plane QD. We proved this method to be effective by using it for fixed-star observation. Application of the method to a ground-to-satellite laser beam pointing system showed that it increases the intensity of the laser beam that is transmitted to a satellite.
Araki Ken'ichi
Suzuki Yoshiaki
Toyoda Masahiro
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