Monitoring of laser guide star and light pollution

Nancy Ageorges; Francoise Delplancke; Norbert N. Hubin; Richard I. Davies

doi:10.1117/12.363626

5 October 1999 Monitoring of laser guide star and light pollution

Nancy Ageorges, Francoise Delplancke, Norbert N. Hubin, Richard I. Davies

Proceedings Volume 3763, Propagation and Imaging through the Atmosphere III; (1999) https://doi.org/10.1117/12.363626
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Nancy Ageorges, Francoise Delplancke, Norbert N. Hubin, and Richard I. Davies "Monitoring of laser guide star and light pollution", Proc. SPIE 3763, Propagation and Imaging through the Atmosphere III, (5 October 1999); https://doi.org/10.1117/12.363626

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