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Paper: The Multi Aperture Imaging Array
Volume: 194, Working on the Fringe: Optical and IR Interferometry from Ground and Space
Page: 278
Authors: Zarifis, V.; Bell, R. M., Jr.; Benson, L. R.; Cuneo, P. J.; Duncan, A. L.; Herman, B. J.; Holmes, B.; Sigler, R. D.; Stone, R. E.; Stubbs, D. M.; Kendrick, R. L.; Paxman, R. G.; Seldin, J. H.; Löfdahl, M. G.
Abstract: A multi-aperture telescope imaging phased array is being demonstrated at the Lockheed Martin Advanced Technology Center in Palo Alto. The sparse array consists of nine afocal telescopes that are combined to a common focus in a Fizeau interferometer configuration. We have demonstrated diffraction limited performance over a 150 micro-radian field of view with broad band (550 to 800 nm) illumination. The relatively high bandwidth closed loop phasing is achieved using phase diversity wavefront sensing techniques. Applications using a filled array for astronomical observations will also be discussed.
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