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Proceedings Paper

New concept for combining 3 telescopes with integrated optics: multimode interferences (MMI)
Author(s): Frederic Rooms; Alain Morand; Isabelle Schanen-Duport; Jean-Emmanuel Broquin; Pierre Haguenauer; Jean-Philippe Berger; M. Martin; Taha Benyattou
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Paper Abstract

Integrated optics technologies are an attractive alternative to classical bulk optics for the beam combination function of an interferometer. We propose a new integrated optics combiner for three apertures giving access to the closure phase on each output. It uses a multimode interference combination scheme realized by ion exchange on a glass substrate. This paper describes the theoretical behaviour of the beam combiner and its design constraints. Its interferometric behaviour is simulated and first experimental results using for the first time, as far as we know, a Near field Scanning Optical Measurement (NSOM) technique are discussed.

Paper Details

Date Published: 21 February 2003
PDF: 11 pages
Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); doi: 10.1117/12.461587
Show Author Affiliations
Frederic Rooms, Institut de Microelecctronique, Electromagnetisme et Photonique (France)
Alain Morand, Institut de Microelecctronique, Electromagnetisme et Photonique (France)
Isabelle Schanen-Duport, Institut de Microelecctronique, Electromagnetisme et Photonique (France)
Jean-Emmanuel Broquin, Institut de Microelecctronique, Electromagnetisme et Photonique (France)
Pierre Haguenauer, IMEP/Alcatel Space Industries (France)
Jean-Philippe Berger, Harvard-Smithsonian Ctr. for Astrophysics (United States)
M. Martin, INSA/Lyon (France)
Taha Benyattou, INSA/Lyon (France)

Published in SPIE Proceedings Vol. 4838:
Interferometry for Optical Astronomy II
Wesley A. Traub, Editor(s)

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