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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 11 — Apr. 10, 2008
  • pp: 1880–1892

Atmospheric turbulence profiling with slodar using multiple adaptive optics wavefront sensors

Lianqi Wang, Matthias Schöck, and Gary Chanan  »View Author Affiliations


Applied Optics, Vol. 47, Issue 11, pp. 1880-1892 (2008)
http://dx.doi.org/10.1364/AO.47.001880


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Abstract

The slope detection and ranging (slodar) method recovers atmospheric turbulence profiles from time averaged spatial cross correlations of wavefront slopes measured by Shack–Hartmann wavefront sensors. The Palomar multiple guide star unit (MGSU) was set up to test tomographic multiple guide star adaptive optics and provided an ideal test bed for slodar turbulence altitude profiling. We present the data reduction methods and slodar results from MGSU observations made in 2006. Wind profiling is also performed using delayed wavefront cross correlations along with slodar analysis. The wind profiling analysis is shown to improve the height resolution of the slodar method and in addition gives the wind velocities of the turbulent layers.

© 2008 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(110.1085) Imaging systems : Adaptive imaging

ToC Category:
Atmospheric and oceanic optics

History
Original Manuscript: September 4, 2007
Revised Manuscript: December 20, 2007
Manuscript Accepted: January 25, 2008
Published: April 4, 2008

Citation
Lianqi Wang, Matthias Schöck, and Gary Chanan, "Atmospheric turbulence profiling with slodar using multiple adaptive optics wavefront sensors," Appl. Opt. 47, 1880-1892 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-11-1880

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