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26 June 2006 The active phasing experiment: Part I. Concept and objectives
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In a framework of ELT design study our group is building an Active Phasing Experiment (APE), the main goals of which is to demonstrate the non-adaptive wavefront control scheme and technology for Extremely Large Telescope (ELT). The experiment includes verification and test of different phasing sensors and integration of a phasing wavefront sensor into a global scheme of segmented telescope active control. After a sufficient number of tests in the laboratory APE will be mounted and tested on sky at a Nasmyth focus of a VLT unit telescope. The paper presents APE as a demonstrator of particular aspects of ELT and provides a general understanding concerning the strategy of segmented mirrors active control.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Natalia Yaitskova, Frederic Gonte, Frederic Derie, Lothar Noethe, Isabelle Surdej, Robert Karban, Kjetil Dohlen, Maud Langlois, Simone Esposito, Enrico Pinna, Marcos Reyes, Lusma Montoya, and David Terrett "The active phasing experiment: Part I. Concept and objectives", Proc. SPIE 6267, Ground-based and Airborne Telescopes, 62672Z (26 June 2006);


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