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22 July 2008 Phasing segmented telescopes with long-exposure phase diversity images
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Abstract
One of the major issues in new Extremely Large Telescopes is the phasing of their primary segmented mirror. A cophasing sensor is mandatory to achieve the ultimate resolution of the telescope. Phase diversity (PD) is a light-hardware cophasing technique. In this paper, we show that this technique is suited to segmented pupil instruments, such as the E-ELT.
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Serge Meimon, Enguerran Delavaquerie, Frédéric Cassaing, Thierry Fusco, Laurent M. Mugnier, and Vincent Michau "Phasing segmented telescopes with long-exposure phase diversity images", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701214 (22 July 2008); https://doi.org/10.1117/12.787835
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