Design and construction of the fibre system for FMOS

Graham J. Murray; George N. Dodsworth; Robert Content; Naoyuki Tamura

doi:10.1117/12.790411

11 July 2008 Design and construction of the fibre system for FMOS

Graham J. Murray, George N. Dodsworth, Robert Content, Naoyuki Tamura

Author Affiliations +

Proceedings Volume 7014, Ground-based and Airborne Instrumentation for Astronomy II; 70145L (2008) https://doi.org/10.1117/12.790411
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

A consortium of Japanese, Australian and UK groups has developed a fibre-fed near IR (J & H band) multi-object spectrographic facility (FMOS) for the Subaru telescope. In this second-generation instrument, a novel prime focus 400-fibre multi-object positioning system, ECHIDNA, is optically linked via twin cables to dual IR spectrographs. The spectrographs are located some distance away, on a dedicated platform two levels above Nasmyth. The Centre for Advanced Instrumentation at Durham University oversaw the design and construction of the optical fibre system linking ECHIDNA to the spectrographs. A modularised connector within the cable scheme and an integral back illumination unit additionally featured as part of the Durham work-package. At the time of writing (mid 2008) FMOS, including the fibre system, is installed and functional on-telescope, with commissioning currently underway. This paper provides an overview of the design and construction of the optical fibre system.

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Graham J. Murray, George N. Dodsworth, Robert Content, and Naoyuki Tamura "Design and construction of the fibre system for FMOS", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70145L (11 July 2008); https://doi.org/10.1117/12.790411

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