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Proceedings Paper

Monitoring of laser guide star and light pollution
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Paper Abstract

The optical backscatter of the 4W CW laser used to produce a mesospheric sodium-layer laser guide star for the MPE adaptive optics system (ALFA) has been observed from a neighboring 2.2 m telescope. The observations, taken at the Max Planck Observatory in Calar-Alto (Spain), in August 1998, had two aims: study the Na plume (altitude and profile variations) and the Rayleigh cone to achieve Rayleigh scattering measurements. In the framework of the network, `Laser Guide Star for 8 m class telescopes', a program of the European Commission, ESO, MPE and NUI, Galway are collaborating on studying the light pollution due to the MPE ALFA laser.

Paper Details

Date Published: 5 October 1999
PDF: 11 pages
Proc. SPIE 3763, Propagation and Imaging through the Atmosphere III, (5 October 1999); doi: 10.1117/12.363626
Show Author Affiliations
Nancy Ageorges, National Univ. of Ireland, Galway (Chile)
Francoise Delplancke, European Southern Observatory (Belgium)
Norbert N. Hubin, European Southern Observatory (Germany)
Richard I. Davies, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)


Published in SPIE Proceedings Vol. 3763:
Propagation and Imaging through the Atmosphere III
Michael C. Roggemann; Luc R. Bissonnette, Editor(s)

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