Computer Science – Performance
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sf2a.conf..263p&link_type=abstract
SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli
Computer Science
Performance
Scientific paper
We present a test bench designed to study the performances of interferometric imaging systems. It aims at comparing the aperture synthesis, Fizeau and densified pupils beam combination schemes, mainly in the framework of the second generation instrument VIDA (VLTI Imaging with a Densified Array) of the VLTI. A Fizeau assembly has been achieved, using a multi-aperture mask and associated with a wavefront sensor. It allows identification of technical requirements like photometry and cophasing correction. A densified assembly is being studied which allows pupil rearrangement and spatial filtering by using single mode fibers. The goal here is to compare the expected densification properties allowed by monomode fibers with a classical optical scheme.
Antonelli Paolo
Bresson Yves
Clausse Jean Michel
Lagarde Stephane
Lardiere Oliver
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