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The design of an adaptive optics telescope : the case of DAG
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Date
2016-07-01
Author
Jolissaint, Laurent
KESKİN, ONUR
Zago, Lorenzo
Yerli, Sinan Kaan
YEŞİLYAPRAK, Cahit
Mudry, Emeric
Lousberg, Gregory
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In this paper, we describe in detail the optical design of DAG, a new 4 m telescope for Turkey. DAG is an ”adaptive optics friendly” telescope, in a sense that each design decision is taken considering the potential impact on the AO performance (vibrations, static aberrations etc.) The objective is to make this telescope fully ready for AO at first light. It is designed as a Ritchey-Chr´etien combination, 56 m focal length, with Nasmyth foci only, and active optics. Its total RMS error is expected to be 45 nm up to Zernike mode 78, and 26 nm for the higher, non AO corrected modes. A final design optimization has been done by the telescope manufacturers, demonstrating that our AO-based requirements can be satisfied, without much difficulty.
Subject Keywords
DAG observatory
,
Ritchey-Chretien telescope
,
Adaptive optics
,
Active optics
URI
https://hdl.handle.net/11511/37128
DOI
https://doi.org/10.1117/12.2233297
Collections
Department of Physics, Conference / Seminar
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L. Jolissaint et al., “The design of an adaptive optics telescope : the case of DAG,” 2016, vol. 9906, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37128.