Beam combination schemes and technologies for the Planet Formation Imager (PFI)
Stefano Minardi, Sylvestre Lacour, Jean-Philippe Berger, Lucas, Labadie, Robert R. Thomson, Chris Haniff, Michael Ireland
TL;DR
This paper reviews various beam combination technologies for the Planet Formation Imager, focusing on their characteristics, maturity, and suitability for mid-infrared astronomical interferometry.
Contribution
It provides a comprehensive overview of different beam combination schemes and assesses their technological readiness for the PFI project.
Findings
Multiple beam combination options are evaluated for PFI.
Technological maturity varies across different schemes.
Integrated optics solutions show promising potential.
Abstract
The Planet Formation Imager (PFI) initiative aims at developing the next generation large scale facility for imaging astronomical optical interferometry operating in the mid-infrared. Here we report on the progress of the Planet Formation Imager Technical Working Group on the beam-combination instruments. We will discuss various available options for the science and fringe-tracker beam combination instruments, ranging from direct imaging, to non-redundant fiber arrays, to integrated optics solutions. Besides considering basic characteristics of the schemes, we will investigate the maturity of the available technological platforms at near- and mid-infrared wavelengths.
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