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Proceedings Article

Nulling interferometer based on an integrated optics combiner

[+] Author Affiliations
Valerie Weber, Marc Barillot

Alcatel Space (France)

Pierre Haguenauer

Alcatel Space (France) and IMEP, CNRS and Institut National Polytechnique de Grenoble (France)

Pierre Y. Kern

Lab. d'Astrophysique de l'Observatoire de Grenoble (France)

Isabelle Schanen-Duport

IMEP, CNRS and Institut National Polytechnique de Grenoble (France)

Pierre R. Labeye

CEA-LETI (France)

Laurence Pujol

SAGEIS-CSO (France)

Zoran Sodnik

European Space Agency/ESTEC (Netherlands)

Proc. SPIE 5491, New Frontiers in Stellar Interferometry, 842 (October 20, 2004); doi:10.1117/12.550581
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From Conference Volume 5491

  • New Frontiers in Stellar Interferometry
  • Wesley A. Traub
  • USA | June 21, 2004

abstract

The Multi-Aperture Imaging Interferometer (MAI2), which Alcatel Space has been developing for ESA for deep nulling demonstration in preparation of the Darwin project, is based on an innovative layout, where both beam combination and modal wave-front filtering functions are achieved by means of an Integrated Optics (IO) component. Two different components, based on different designs and technologies, have been developed and characterised by LAOG with detailed design and manufacturing performed by IMEP/GeeO/LETI. SAGEIS-CSO (optical path control) and Alcatel Space have developed the other breadboard functions. The MAI™ interferometer achieved stable Darwin-class nulling (10-5) of a simulated star in monochromatic light, and with a relative bandwidth of several percent (10-4). Operation in non-polarised light, with unchanged nulling performances, was also demonstrated. Preliminary characterisation of the relationship between nulling and bandwidth is also provided.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Valerie Weber ; Marc Barillot ; Pierre Haguenauer ; Pierre Y. Kern ; Isabelle Schanen-Duport, et al.
"Nulling interferometer based on an integrated optics combiner", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, 842 (October 20, 2004); doi:10.1117/12.550581; http://dx.doi.org/10.1117/12.550581


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