Translator Disclaimer
13 September 2012 Design and predicted performance of the GMT ground-layer adaptive optics mode
Author Affiliations +
The Giant Magellan Telescope is planning to provide adaptive wavefront correction of the low layers (<1 km) of atmospheric turbulence in support of wide-field instrumentation. This ground-layer adaptive optics (GLAO) mode will use the adaptive secondary mirrors to provide improved image quality over approximately 7 arcminutes FOV. We present a comparison between the use of a sodium laser guide star asterism plus three tip-tilt natural guide stars versus natural guide stars only on the average seeing width improvement. The layout and components of both (laser beacon based and natural star only based) GLAO concepts are described and the impact and interaction with other GMT subsystems is analyzed.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Philip M. Hinz, Guido Brusa, Vidhya Vaitheeswaran, Tom McMahon, Tom Connors, Russell Knox, Antonin Bouchez, and Manny Montoya "Design and predicted performance of the GMT ground-layer adaptive optics mode", Proc. SPIE 8447, Adaptive Optics Systems III, 84473R (13 September 2012); doi: 10.1117/12.926727;


Adaptive optics for second-generation VLT instruments
Proceedings of SPIE (October 24 2004)
Measuring turbulence in an extended field of view
Proceedings of SPIE (January 30 2001)
ARGOS: the laser guide star system for the LBT
Proceedings of SPIE (July 27 2010)
LA3OS2 a software package for laser guide star adaptive...
Proceedings of SPIE (September 26 1999)

Back to Top