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

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.

Citation Download Citation

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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