4 August 2016 Practical beam transport for PFI
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The Planet Formation Imager (PFI) is a future kilometric-baseline infrared interferometer to image the complex physical processes of planet formation. Technologies that could be used to transport starlight to a central beam-combining laboratory in PFI include free-space propagation in air or vacuum, and optical fibres. This paper addresses the design and cost issues associated with free-space propagation in vacuum pipes. The signal losses due to diffraction over long differential paths are evaluated, and conceptual beam transport designs employing pupil management to ameliorate these losses are presented and discussed.
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David Mozurkewich, David Mozurkewich, John Young, John Young, Michael Ireland, Michael Ireland, "Practical beam transport for PFI", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99073X (4 August 2016); doi: 10.1117/12.2232382; https://doi.org/10.1117/12.2232382

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