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Proceedings Article

Persee: a nulling demonstrator with real-time correction of external disturbances

[+] Author Affiliations
F. Cassaing, B. Sorrente

ONERA (France) and PHASE, ONERA, Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)

J. M. Le Duigou

Ctr. National d'Études Spatiales (France)

J. P. Amans, P. Laporte

GEPI, Observatoire de Paris (France) and PHASE, ONERA, Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)

M. Barillot, L. Pirson

Thales Alenia Space (France)

T. Buey, J. M. Reess, G. Rousset, V. Coudé du Foresto

LESIA, Observatoire de Paris (France) and PHASE, ONERA, Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)

F. Henault

Observatoire de la Côte d'Azur (France)

K. Houairi

ONERA (France) and Ctr. National d'Etudes Spatiales (France) and PHASE, ONERA, Observatoire de Paris, CNRS, and Denis Diderot Paris 7 (France)

S. Jacquinod

Institut d'Astrophysique Spatiale, Ctr. Univ d'Orsay (France) and Ctr. National d'Etudes Spatiales (France)

A. Marcotto

Observatoire de la Cote d'Azur (France)

M. Ollivier

Insitut d'Astrophysique Spatiale, Ctr. Univ. d'Orsay (France)

Proc. SPIE 7013, Optical and Infrared Interferometry, 70131Z (July 14, 2008); doi:10.1117/12.789316
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From Conference Volume 7013

  • Optical and Infrared Interferometry
  • Marseille, France | June 23, 2008

abstract

Nulling interferometry is one of the most promising methods to study habitable extrasolar systems. Several projects, such as Darwin, TPF, Pegase, FKSI or Aladdin, are currently considered and supported by R&D programs. One of the main issues of nulling interferometry is the feasibility of a stable polychromatic null despite the presence of significant disturbances, induced by vibrations, atmospheric turbulence on the ground or satellite drift for spaceborne missions. To reduce cost and complexity of the whole system, it is necessary to optimize not only the control loop performance at platform and payload levels, but also their interaction. In this goal, it was decided in 2006 to build a laboratory demonstrator named Persee. Persee is mostly funded by CNES and built by a consortium including CNES, IAS, LESIA, OCA, ONERA and TAS. After a definition phase in 2006, the implementation of the sub-systems has now begun and the integration near Paris by GIS-PHASE (LESIA, ONERA and GEPI) is planned in 2009. This paper details the main objectives of PERSEE, describes the definition of the bench, presents the current status and reports results obtained with the first sub-systems.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

F. Cassaing ; J. M. Le Duigou ; J. P. Amans ; M. Barillot ; T. Buey, et al.
"Persee: a nulling demonstrator with real-time correction of external disturbances", Proc. SPIE 7013, Optical and Infrared Interferometry, 70131Z (July 14, 2008); doi:10.1117/12.789316; http://dx.doi.org/10.1117/12.789316


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