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Proceedings Article

PASS-2: quantitative photometric measurements of the polychromatic laser guide star

[+] Author Affiliations
Matthias Schoeck

Ctr. de Recherche Astronomique de Lyon (USA)

Renaud Foy, Francoise-Claude Foy, Michel Tallon

Ctr. de Recherche Astronomique de Lyon (France)

Jean-Paul Pique, Patricia Segonds

Univ. Joseph Fourier (France)

Patrick Chevrou, Alain D. Petit, Veronique Bellanger, Olivier Peillet, Jean-Marc Weulersse

Commissariat a l'Energie Atomique (France)

Nancy Ageorges

National Univ. of Ireland/Galway (Chile)

Hayden Fews

National Univ. of Ireland/Galway (Ireland)

Claudia K. Hoegemann

Ctr. de Recherche Astronomique de Lyon (Spain)

Markus Laubscher

Univ. Joseph Fourier (Switzerland)

Proc. SPIE 4007, Adaptive Optical Systems Technology, 296 (July 7, 2000); doi:10.1117/12.390338
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From Conference Volume 4007

  • Adaptive Optical Systems Technology
  • Peter L. Wizinowich
  • Munich, Germany | March 27, 2000

abstract

We present results from measurements of the return flux from a polychromatic sodium laser guide star produced in Pierrelatte, France during the PASS-2 experiment. In the experiment, photometry of light at 330, 569, 589, and 589.6 nm emitted by mesospheric sodium under two-color laser excitation (569 and 589 nm) was performed. The variation of oscillator and laser configurations as well as simultaneous measurements of the atmospheric coherence length and the mesospheric sodium density permit a comparison of the results with atomic physics models. Using the results, we can determine the setup that produces the maximum return flux from the polychromatic laser guide star. The knowledge gained will be used to aid the ELP- OA project, which has as its goal the design, testing, and implementation of an adaptive optics system that uses a polychromatic laser guide star for wave front tilt measurements.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Matthias Schoeck ; Renaud Foy ; Jean-Paul Pique ; Patrick Chevrou ; Nancy Ageorges, et al.
"PASS-2: quantitative photometric measurements of the polychromatic laser guide star", Proc. SPIE 4007, Adaptive Optical Systems Technology, 296 (July 7, 2000); doi:10.1117/12.390338; http://dx.doi.org/10.1117/12.390338


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