Physics – Optics
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5491.1771a&link_type=abstract
New Frontiers in Stellar Interferometry, Proceedings of SPIE Volume 5491. Edited by Wesley A. Traub. Bellingham, WA: The Intern
Physics
Optics
Scientific paper
We describe a laboratory optical prototype being designed and built to conduct, at the Laboratoire Universtaire d'Astrophysique de Nice, France, some patrol experiments to prepare the construction of the interferometric array KEOPS (see these proceedings) at Dome C of Antarctica. Our testbed intends to gain experience on the Interferometric Remapped Array Nulling (IRAN) technique for imaging/nulling optical interferometry in IR (2.5?-10?) and its use with the KEOPS project. The optical design, beam-combination and data analysis are described in details. Critical points concerning off-axis, optical delay compensation and F.O. combination are outlined. The recent results obtained in our laboratory on our testbed of IRAN using F.O. bundles are described showing that massively integrated optics are the obvious way to be used in a many-telescope interferometric optical array. Future steps to drive our R&D program are discussed which can also apply to other foreseen optical synthesis arrays like the VLTI or space-borne interferometers.
Abe Lyu
Baptiste Daban Jean
Belu Adrian
Caratti C.
Filloux Ch.
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