IRAN: laboratory test bench for hypertelescope pupil-plane recombination

F. Allouche; F. Vakili; A. Glindemann; E. Aristidi; L. Abe; E. Fossat; R. Douet

doi:10.1117/12.788680

28 July 2008 IRAN: laboratory test bench for hypertelescope pupil-plane recombination

F. Allouche, F. Vakili, A. Glindemann, E. Aristidi, L. Abe, E. Fossat, R. Douet

Proceedings Volume 7013, Optical and Infrared Interferometry; 70133T (2008) https://doi.org/10.1117/12.788680
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

In 2004, our group proposed IRAN, an alternative beam-combination technique to the so-called hypertelescope imaging method introduced by Labeyrie in the 1990s. We have recently set up a laboratory experiment aiming at validating our image densification approach instead of the pupil densification scheme of Labeyrie. In our experiment, seven sub-apertures illuminated by laser sources are recombined using the IRAN scheme. The validation of the IRAN recombination consists basically in retrieving the point-spread intensity distribution (PSID), demonstrating the conservation of the object-image convolution relation. We will introduce IRAN, compare it to the hyper-telescope, and present the experimental results that we obtained.

Citation Download Citation

F. Allouche, F. Vakili, A. Glindemann, E. Aristidi, L. Abe, E. Fossat, and R. Douet "IRAN: laboratory test bench for hypertelescope pupil-plane recombination", Proc. SPIE 7013, Optical and Infrared Interferometry, 70133T (28 July 2008); https://doi.org/10.1117/12.788680

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