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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 9 — May. 5, 2014
  • pp: 10948–10967

First on-sky results of the CO-SLIDAR C n 2 profiler

Juliette Voyez, Clélia Robert, Jean-Marc Conan, Laurent M. Mugnier, Etienne Samain, and Aziz Ziad  »View Author Affiliations


Optics Express, Vol. 22, Issue 9, pp. 10948-10967 (2014)
http://dx.doi.org/10.1364/OE.22.010948


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Abstract

COupled SLope and scIntillation Detection And Ranging (CO-SLIDAR) is a recent profiling method of the vertical distribution of atmospheric turbulence strength ( C n 2 profile). It takes advantage of correlations of slopes and of scintillation, both measured with a Shack-Hartmann wavefront sensor on a binary star. In this paper, we present the improved CO-SLIDAR reconstruction method of the C n 2 profile and the first on-sky results of the CO-SLIDAR profiler. We examine CO-SLIDAR latest performance in simulation, taking into account the detection noise bias and estimating error bars along with the turbulence profile. The estimated C n 2 profiles demonstrate the accuracy of the CO-SLIDAR method, showing sensitivity to both low and high altitude turbulent layers. CO-SLIDAR is tested on-sky for the first time, on the 1.5 m MeO (Métrologie Optique) telescope at Observatoire de la Côte d’Azur (France). The reconstructed profiles are compared to turbulence profiles estimated from meteorological data and a good agreement is found. We discuss CO-SLIDAR’s contribution in the C n 2 profilers’ landscape and we propose some improvements of the instrument.

© 2014 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(100.3190) Image processing : Inverse problems
(350.1260) Other areas of optics : Astronomical optics
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(070.7345) Fourier optics and signal processing : Wave propagation

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: November 28, 2013
Revised Manuscript: February 11, 2014
Manuscript Accepted: February 13, 2014
Published: April 30, 2014

Virtual Issues
May 23, 2014 Spotlight on Optics

Citation
Juliette Voyez, Clélia Robert, Jean-Marc Conan, Laurent M. Mugnier, Etienne Samain, and Aziz Ziad, "First on-sky results of the CO-SLIDAR Cn2 profiler," Opt. Express 22, 10948-10967 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-9-10948


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