24 February 2006 Infrared single-mode hollow conductive waveguides for stellar interferometry
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Proceedings Volume 6123, Integrated Optics: Devices, Materials, and Technologies X; 61230L (2006); doi: 10.1117/12.645075
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States
Abstract
This paper reports the design, realisation, and characterisation of singlemode hollow conductive waveguides for stellar interferometry. These waveguides are developed in the frame of technological developments for the ESA DARWIN mission, which aims at direct detection of exoplanets and biomarkers on them (proof of life) using nulling interferometry in the 6-20 μm spectral range. The use of singlemode waveguides is mandatory in order to meet DARWIN required performance by achieving a modal filtering better than 10-6. While there is ongoing developments of infrared dielectric fibers or integrated waveguides, both using chalcogenide glasses or silver halide compounds, this paper presents the first realisation and characterisation of singlemode hollow conductive waveguides in the DARWIN spectral range, by means of standard microelectronic and wafer bonding technologies.
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Pierre Labeye, Jean-Emmanuel Broquin, Pierre Kern, Patrice Noël, Pierre Saguet, Lucas Labadie, Cyril Ruilier, Volker Kirshner, "Infrared single-mode hollow conductive waveguides for stellar interferometry", Proc. SPIE 6123, Integrated Optics: Devices, Materials, and Technologies X, 61230L (24 February 2006); doi: 10.1117/12.645075; https://doi.org/10.1117/12.645075
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KEYWORDS
Waveguides

Silicon

Gold

Semiconducting wafers

Stellar interferometry

Infrared radiation

Telescopes

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