Final results of the PERSEE experiment

J. M. Le Duigou; J. Lozi; F. Cassaing; K. Houairi; B. Sorrente; J. Montri; S. Jacquinod; J.-M. Reess; L. Pham; E. Lhome; T. Buey; F. Hénault; A. Marcotto; P. Girard; N. Mauclert; M. Barillot; V. Coudé du Foresto; M. Ollivier

doi:10.1117/12.925350

12 September 2012 Final results of the PERSEE experiment

J. M. Le Duigou, J. Lozi, F. Cassaing, K. Houairi, B. Sorrente, J. Montri, S. Jacquinod, J.-M. Reess, L. Pham, E. Lhome, T. Buey, F. Hénault, A. Marcotto, P. Girard, N. Mauclert, M. Barillot, V. Coudé du Foresto, M. Ollivier

Author Affiliations +

Proceedings Volume 8445, Optical and Infrared Interferometry III; 844525 (2012) https://doi.org/10.1117/12.925350
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The PERSEE breadboard, developed by a consortium including CNES, IAS, LESIA, OCA, ONERA and TAS since 2005, is a nulling demonstrator that couples an infrared nulling interferometer with a formation flying simulator able to introduce realistic disturbances in the set-up. The general idea is to prove that an adequate optical design can considerably relax the constraints applying at the spacecrafts level of a future interferometric space mission like Darwin/TPF or one of its precursors. The breadboard is now fully operational and the measurements sequences are managed from a remote control room using automatic procedures. A set of excellent results were obtained in 2011. The measured polychromatic nulling depth with non polarized light is 8.8 10^-6 stabilized at 9 10^-8 in the 1.65-2.45 μm spectral band (37 % bandwidth) during 100 s. This result was extended to a 7h duration thanks to an automatic calibration process. The various contributors are identified and the nulling budget is now well mastered. We also proved that harmonic disturbances in the 1-100 Hz up to several ten’s of nm rms can be very efficiently corrected by a Linear Quadratic Control (LQG) if a sufficient flux is available. These results are important contributions to the feasibility of a future space based nulling interferometer.

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J. M. Le Duigou, J. Lozi, F. Cassaing, K. Houairi, B. Sorrente, J. Montri, S. Jacquinod, J.-M. Reess, L. Pham, E. Lhome, T. Buey, F. Hénault, A. Marcotto, P. Girard, N. Mauclert, M. Barillot, V. Coudé du Foresto, and M. Ollivier "Final results of the PERSEE experiment", Proc. SPIE 8445, Optical and Infrared Interferometry III, 844525 (12 September 2012); https://doi.org/10.1117/12.925350

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