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Proceedings Paper

Development of a CELestial Infrared Nuller Experiment (CELINE) for broadband nulling and new single-mode fiber testing
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Paper Abstract

The small angular distance (<100 mas) and the huge flux ratio (107) between an Earth-like exoplanet in the socalled habitable zone and its host star makes it very difficult to direct image such systems. Nulling interferometry consists of a very powerful technique that combines destructively the light from two or more collectors to dim the starlight and to reveal faint companions in its vicinity. We have developed a new nulling experiment based on the fiber nuller principle. This fully symmetric reflective nulling bench aims at testing broadband nulling in both H and K bands as well as characterizing photonic fibers for modal filtering. We present in this paper the design, the development as well as preliminary results of the experiment.

Paper Details

Date Published: 21 July 2010
PDF: 9 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 77342L (21 July 2010); doi: 10.1117/12.856843
Show Author Affiliations
Charles Hanot, Univ. de Liège (Belgium)
Pierre Riaud, Univ. de Liège (Belgium)
Dimitri Mawet, Jet Propulsion Lab. (United States)
Olivier Absil, Univ. de Liège (Belgium)
Jean Surdej, Univ. de Liège (Belgium)
Serge Habraken, Univ. de Liège (Belgium)
Ctr. Spatial de Liege (Belgium)

Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)

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