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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 1 — Jan. 1, 2005
  • pp: 60–66

Modulation effect of the atmosphere in a pyramid wave-front sensor

Joana B. Costa  »View Author Affiliations


Applied Optics, Vol. 44, Issue 1, pp. 60-66 (2005)
http://dx.doi.org/10.1364/AO.44.000060


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Abstract

The pyramid wave-front sensor in its original form works with a mechanical modulation that adapts the linear range of the sensor to seeing and sensing conditions. For adaptive optics systems working in an astronomical context, the way in which the aberrations produced by the atmospheric turbulence, which are not seen by the sensor owing to its limited temporal bandwidth, act as modulators is shown. These aberrations have the same effect of increasing the linear range and localizing the measurement as does mechanical modulation. The effect of residual wave-front aberrations is estimated for some example conditions of telescope diameter, system bandwidth, wind velocity, and Fried parameter.

© 2005 Optical Society of America

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

History
Original Manuscript: April 16, 2004
Revised Manuscript: September 21, 2004
Manuscript Accepted: October 5, 2004
Published: January 1, 2005

Citation
Joana B. Costa, "Modulation effect of the atmosphere in a pyramid wave-front sensor," Appl. Opt. 44, 60-66 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-1-60

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