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Practical beam transport for PFI

Accepted version
Peer-reviewed

Type

Conference Object

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Authors

Mozurkewich, D 
Ireland, M 

Abstract

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.

Description

Keywords

Planet Formation Imager, optical interferometry, beam transport, delay lines, Fresnel diffraction

Journal Title

Proceedings of SPIE - The International Society for Optical Engineering

Conference Name

SPIE Astronomical Telescopes + Instrumentation

Journal ISSN

0277-786X
1996-756X

Volume Title

9907

Publisher

SPIE