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21 November 2017 Technological aspects and results from the DARWIN fringe sensor predevelopment
Hans Thiele, Stefan Hofer, Timo Stuffler, Frederic Cassaign, Isabelle Mocoeur, Laurent Mugnier, Marc Barillot, Yves Salvadé, Igor Zayer
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Proceedings Volume 10567, International Conference on Space Optics — ICSO 2006; 105670K (2017) https://doi.org/10.1117/12.2308056
Event: International Conference on Space Optics 2006, 2006, Noordwijk, Netherlands
Abstract
The objective of the so-called fringe sensor DWARF - derived from DARWIN AstRonomical Fringe Sensor is to measure all relevant perturbations and to provide real time control data to achieve co-phasing of the freeflying telescopes of the DARWIN system. An overview of the design of the sensor Breadboard (BB), as it has been designed and built at Kayser-Threde as Prime with main partners ONERA and Alcatel Space under ESA contract 17012/03/NL/EC is presented. An extensive test campaign has been carried out at ONERA. The respective optical test setup is outlined and the achieved performances for retrieval of primary and higher order aberrations are presented. As final outcome of the BB study the essential elements to build a fringe sensor (FS) flight model are shortly characterized and the respective development roadmap is sketched.
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Hans Thiele, Stefan Hofer, Timo Stuffler, Frederic Cassaign, Isabelle Mocoeur, Laurent Mugnier, Marc Barillot, Yves Salvadé, and Igor Zayer "Technological aspects and results from the DARWIN fringe sensor predevelopment", Proc. SPIE 10567, International Conference on Space Optics — ICSO 2006, 105670K (21 November 2017); https://doi.org/10.1117/12.2308056
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KEYWORDS
Sensors
Telescopes
Space telescopes
Fermium
Frequency modulation
Calibration
Optical testing
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