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Conferences > FiO > 2017 > JW4A > JW4A.84

Low-loss photonic Nulling Interferometer in the Mid-Infrared for Astronomical Applications

Thomas Gretzinger, Simon Gross, Alexander Arriola, Peter Tuthill, and Michael J. Withford

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Abstract

We report the fabrication of a photonic Nulling Interferometer in Gallium Lanthanum Sulphide operating at 4 µm. The device has low propagion loss waveguides of 0.22 ± 0.02 dB/cm, which is sufficient enough to perform on-sky experiments.

© 2017 Optical Society of America

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