Final design of optical fibre routing for 4MOST

Allar Saviauk; Peter Buschkamp; Patrick Caillier; Carmen Feiz; Dionne Haynes; Roger Haynes; Tomas Jahn; Andreas Kelz; Jean-Emmanuel Migniau; Johannes Piotrowski; Dennis Plüschke; Swara Rahurkar; Walter Seifert

doi:10.1117/12.2312160

10 July 2018 Final design of optical fibre routing for 4MOST

Allar Saviauk, Peter Buschkamp, Patrick Caillier, Carmen Feiz, Dionne Haynes, Roger Haynes, Tomas Jahn, Andreas Kelz, Jean-Emmanuel Migniau, Johannes Piotrowski, Dennis Plüschke, Swara Rahurkar, Walter Seifert

Author Affiliations +

Proceedings Volume 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III; 107065Y (2018) https://doi.org/10.1117/12.2312160
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

4MOST is a fibre-fed, multi-object spectroscopic survey facility to be installed on the VISTA telescope at ESO's Paranal observatory. This paper presents the final mechanical design of the optical fibre route from the fibre positioner at the focal plane of VISTA to the fibre-slits within the high- and low-resolution spectrographs below the azimuth platform. The technical challenges are to provide a safe, durable and efficient fibre route for over 2400 fibres. To accommodate the movements of the telescope, a Cassegrain Cable Wrap and a novel elevation chain concept has been prototyped and extensively tested to validate the design solutions.

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Allar Saviauk, Peter Buschkamp, Patrick Caillier, Carmen Feiz, Dionne Haynes, Roger Haynes, Tomas Jahn, Andreas Kelz, Jean-Emmanuel Migniau, Johannes Piotrowski, Dennis Plüschke, Swara Rahurkar, and Walter Seifert "Final design of optical fibre routing for 4MOST", Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107065Y (10 July 2018); https://doi.org/10.1117/12.2312160

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