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BIFROST is one of the upcoming visitor instruments within the ASGARD array. BIFROST will be deployed at the Very Large Telescope Interferometer (”VLTI”) and is currently under development at University of Exeter. We present the instrumentation design and implementation of a dual-field light source for the calibration and design of the BIFROST instrument within Exeter ”Vanaheim”. The system consists of a beam expander and splitter with associated optics to create an on- and off-axis beam simultaneously. An approach to calibrate the angle of the off-axis beam using an open loop controller is discussed. This report will discuss the OpticStudio-Zemax design and the initial implementation of the system at Exeter.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
D. Lancaster,S. Chhabra,J. Paul,S. Kraus,A. Taras, andM. Ireland
"Vanaheim: a dual-field calibration unit for the integration and testing of the BIFROST instrument", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 1309522 (28 August 2024); https://doi.org/10.1117/12.3019783
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D. Lancaster, S. Chhabra, J. Paul, S. Kraus, A. Taras, M. Ireland, "Vanaheim: a dual-field calibration unit for the integration and testing of the BIFROST instrument," Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 1309522 (28 August 2024); https://doi.org/10.1117/12.3019783