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A laser tomography test bed for extremely large telescopes

Conan, Rodolphe; Piatrou, Piotr; Rigaut, Francois; Uhlendorf, Kristina


The Advanced Instrumentation and Technology Center at the Australian National University is building a Laser Tomography Adaptive Optics Test Bed for Extremely Large Telescopes. The optical test bench is using three Laser Guide Stars (LGS) propagating through three phase screens. The LGS wavefronts are sampled with a 16 × 16 Shack-Hartmann wavefront sensor (SH-WFS). Cone effect, spot elongation and Sodium layer density fluctuations are reproduced on the bench. Two Natural Guide Stars (NGS),...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Conference paper
Source: Proceedings of SPIE - The International Society for Optical Engineering, vol 9148
DOI: 10.1117/12.2054471


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