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Applied Optics

Applied Optics


  • Vol. 41, Iss. 12 — Apr. 20, 2002
  • pp: 2219–2223

Wave-front tilt sensor with two quadrant detectors and its application to a laser beam pointing system

Masahiro Toyoda, Kenichi Araki, and Yoshiaki Suzuki  »View Author Affiliations

Applied Optics, Vol. 41, Issue 12, pp. 2219-2223 (2002)

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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.

© 2002 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(010.7350) Atmospheric and oceanic optics : Wave-front sensing

Original Manuscript: December 5, 2000
Revised Manuscript: November 13, 2001
Published: April 20, 2002

Masahiro Toyoda, Kenichi Araki, and Yoshiaki Suzuki, "Wave-front tilt sensor with two quadrant detectors and its application to a laser beam pointing system," Appl. Opt. 41, 2219-2223 (2002)

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