@inproceedings{87c795316ac744aeb1491eaa47fcfeb0,
title = "Image-plane fringe tracker for adaptive-optics assisted long baseline interferometry",
abstract = "Accurate fringe tracking is essential for sensitive long-wavelength thermal background limited operation of the current Very Large Telescope Interferometry (VLTI) and future Planet Formation Imager (PFI) facilities. We present and simulate a dual fringe tracking and low-order adaptive optics concept based on a combination of non-redundant aperture interferometry and eigenphase in asymmetric pupil wavefront sensing. This scheme can acquire fringes at many wavelengths of path length offset between telescopes, even with moderate tilt offset and pupil shifts between beams. Once locked to fringes, our technique can also be used for simultaneous low-order wavefront sensing, and has near-optimum sensitivity where there is a dominant point-source image component. This concept is part of the Heimdallr visitor instrument currently being investigated for VLTI.",
keywords = "Long baseline optical interferometry, adaptive optics, fringe tracking",
author = "Ireland, {Michael J.} and Denis Defr{\`e}re and Frantz Martinache and Monnier, {John D.} and Barnaby Norris and Peter Tuthill and Julien Woillez",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; 2018 Optical and Infrared Interferometry and Imaging VI ; Conference date: 11-06-2018 Through 15-06-2018",
year = "2018",
doi = "10.1117/12.2314393",
language = "English",
isbn = "9781510619555",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Tuthill, {Peter G.} and Creech-Eakman, {Michelle J.} and Antoine Merand",
booktitle = "Optical and Infrared Interferometry and Imaging VI",
address = "United States",
}