An interferometric imaging test bench: the densified pupil concept applied to the VLTI

Fabien Patru; Denis Mourard; Olivier Lardiere; Alain Spang; Jean-Michel Clausse; Pierre Antonelli; Yves Bresson; Stephane Lagarde

doi:10.1117/12.567527

20 October 2004 An interferometric imaging test bench: the densified pupil concept applied to the VLTI

Fabien Patru, Denis Mourard, Olivier Lardiere, Alain Spang, Jean-Michel Clausse, Pierre Antonelli, Yves Bresson, Stephane Lagarde

Author Affiliations +

Proceedings Volume 5491, New Frontiers in Stellar Interferometry; (2004) https://doi.org/10.1117/12.567527
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

We describe a test bench designed to study the performances of interferometric imaging systems. The main goal is to study the densified pupil concept in the framework of the VLTI. This work is linked to the proposition of a second generation instrument called VIDA (VLTI Imaging with a Densified Array). This bench aims at comparing the imaging performances of the aperture synthesis, Fizeau and densified pupils beam combination schemes and at specifying the technical requirements like cophasing and tip-tilt correction. A Fizeau assembly, using a multi-apertures mask and associated with a wavefront sensor, has been designed. It allows to measure the differential piston between sub-apertures and to link them to the characteristics of the image recovered. A densified assembly is under study by using reflective surfaces or optical fibers to carry the beams and to densify the pupils before the combination.

Citation Download Citation

Fabien Patru, Denis Mourard, Olivier Lardiere, Alain Spang, Jean-Michel Clausse, Pierre Antonelli, Yves Bresson, and Stephane Lagarde "An interferometric imaging test bench: the densified pupil concept applied to the VLTI", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); https://doi.org/10.1117/12.567527

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available