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Proceedings Paper

3D-integrated beam combiner for optical spectro-interferometry
Author(s): Stefano Minardi; Allar Saviauk; Felix Dreisow; Stefan Nolte; Thomas Pertsch
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Paper Abstract

We present a compact setup based on a three-dimensional integrated optical component, allowing the measurement of spectrally resolved complex-visibilities for three channels of polychromatic light. We have tested a prototype of the component in R band and showed that accurate complex visibilities could be retrieved over a bandwidth of 50 nm centered at 650 nm (resolution: R=130). Closure phase stability in the order of λ/60 was achieved implying that the device could be used for spectro-interferometry imaging.

Paper Details

Date Published: 24 July 2014
PDF: 8 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91461D (24 July 2014); doi: 10.1117/12.2054880
Show Author Affiliations
Stefano Minardi, Friedrich-Schiller-Univ. Jena (Germany)
Allar Saviauk, Leibniz-Institut für Astrophysik Potsdam (Germany)
Felix Dreisow, Friedrich-Schiller-Univ. Jena (Germany)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Thomas Pertsch, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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