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Venice 2001
Beyond
Conventional
Adaptive
Optics
Antoine Labeyriea,b, Virginie Borkowskia,b, Frantz Martinachea,b, Luc Arnoldb,
Julien Dejonghea,b, Pierre Riauda,b, Olivier Lardièrea,b and Sophie Gilleta,b
aLaboratoire d'Interféromètrie Stellaire et Exoplanétaire (LISE), CNRS, France
bObservatoire de Haute Provence, 04870 Saint-Michel l'Observatoire , France
ABSTRACT
Large Earth-based hypertelescopes will require adaptive optics using specific wave-
front sensors. Most challenging is the formation of high-resolution images on very
faint objects. MCAO approaches are of interest, as well as satellite-based laser guide
stars. For wavefront sensing, we present an extension of dispersed-fringe algorithms,
using tri-dimensional Fourier analysis.
1. INTRODUCTION
The prospect of building large hypertelescopes, i.e. "multi-aperture densified-pupil imaging interferometers", combining
hundreds or thousands of mirror elements across a square kilometer (CARLINA concept of "Exploded Extremely Large

  

Source: Arnold, Luc - Observatoire de Haute-Provence
Lardière, Olivier - Observatoire de Haute-Provence

 

Collections: Physics