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Proceedings Paper

ARGOS laser system mechanical design
Author(s): M. Deysenroth; M. Honsberg; H. Gemperlein; J. Ziegleder; W. Raab; S. Rabien; L. Barl; W. Gässler; J. L. Borelli
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Paper Abstract

ARGOS, a multi-star adaptive optics system is designed for the wide-field imager and multi-object spectrograph LUCI on the LBT (Large Binocular Telescope). Based on Rayleigh scattering the laser constellation images 3 artificial stars (at 532 nm) per each of the 2 eyes of the LBT, focused at a height of 12 km (Ground Layer Adaptive Optics). The stars are nominally positioned on a circle 2’ in radius, but each star can be moved by up to 0.5’ in any direction. For all of these needs are following main subsystems necessary: 1. A laser system with its 3 Lasers (Nd:YAG ~18W each) for delivering strong collimated light as for LGS indispensable. 2. The Launch system to project 3 beams per main mirror as a 40 cm telescope to the sky. 3. The Wave Front Sensor with a dichroic mirror. 4. The dichroic mirror unit to grab and interpret the data. 5. A Calibration Unit to adjust the system independently also during day time. 6. Racks + platforms for the WFS units. 7. Platforms and ladders for a secure access. This paper should mainly demonstrate how the ARGOS Laser System is configured and designed to support all other systems.

Paper Details

Date Published: 21 July 2014
PDF: 15 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91483H (21 July 2014); doi: 10.1117/12.2055727
Show Author Affiliations
M. Deysenroth, Max-Planck-Institut für extraterrestrische Physik (Germany)
M. Honsberg, Max-Planck-Institut für extraterrestrische Physik (Germany)
H. Gemperlein, Max-Planck-Institut für extraterrestrische Physik (Germany)
J. Ziegleder, Max-Planck-Institut für extraterrestrische Physik (Germany)
W. Raab, Max-Planck-Institut für extraterrestrische Physik (Germany)
S. Rabien, Max-Planck-Institut für extraterrestrische Physik (Germany)
L. Barl, Max-Planck-Institut für extraterrestrische Physik (Germany)
W. Gässler, Max-Planck-Institut für Astronomie (Germany)
J. L. Borelli, Max-Planck-Institut für Astronomie (Germany)


Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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