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Proceedings Paper

Laser pointing camera: a valuable tool for the LGS-AO operations
Author(s): M. Centrone; D. Bonaccini Calia; F. Pedichini; A. Cerruto; A. Ricciardi; F. Ambrosino
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Paper Abstract

We describe the design, functionalities and commissioning results of the Laser Pointing Camera, developed at INAF-OAR in collaboration with ESO and Astrel for the 4LGSF of the ESO Adaptive Optics Facility. The LPC has proven a fundamental tool during commissioning and operation of the 4LGSF. It allows to calibrate the pointing and focusing models of the four LGS, to reduce to zero the overhead time for the open-loop acquisition of the LGS in the wavefront sensor. During LGS-AO operation it collects regularly the LGS photometry, the LGS fwhm and the cirrus clouds scattering levels.

By recognizing via astrometric software the field stars as well as the multiple LGS, LPC is insensitive to flexures of the laser launch telescope or of the receiver telescope opto-mechanics. We present the Commissioning results of the Laser Pointing Camera, obtained at the ESO VLT during the all 4LGSF Laser Guide Star Units Commissioning, and will discuss its possible extension for the ELT operations.

Paper Details

Date Published: 27 July 2016
PDF: 7 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99095L (27 July 2016); doi: 10.1117/12.2233399
Show Author Affiliations
M. Centrone, INAF - Osservatorio Astronomico di Roma (Italy)
D. Bonaccini Calia, European Southern Observatory (Germany)
F. Pedichini, INAF - Osservatorio Astronomico di Roma (Italy)
A. Cerruto, Astrel Instruments Design Ctr. (Italy)
A. Ricciardi, Astrel Instruments Design Ctr. (Italy)
F. Ambrosino, INAF - Osservatorio Astronomico di Roma (Italy)

Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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