Development of deployable fibre integral-field-units for the E-ELT

Andreas Kelz; Thomas Jahn; Justus Neumann; Martin M. Roth; Monika Rutowska; Christer Sandin; Harald Nicklas; Heiko Anwand; C. Schmidt

doi:10.1117/12.2056482

28 July 2014 Development of deployable fibre integral-field-units for the E-ELT

Andreas Kelz, Thomas Jahn, Justus Neumann, Martin M. Roth, Monika Rutowska, Christer Sandin, Harald Nicklas, Heiko Anwand, C. Schmidt

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Proceedings Volume 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation; 915151 (2014) https://doi.org/10.1117/12.2056482
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The use of deployable fibre-bundles plays an increasing role in the design of future Multi-Object-Spectrographs (MOS). Within a research and development project for "Enabling Technologies for the E-ELT", various miniaturized, fibrebundles were designed, built and tested for their suitability for a proposed ELT-MOS instrument. The paper describes the opto-mechanical designs of the bundles and the different manufacture approaches, using glued, stacked and fused optical fibre bundles. The fibre bundles are characterized for performance, using dedicated testbenches in the laboratory and at a telescope simulator. Their performance is measured with respect to geometric accuracy, throughput, FRD behavior and cross-talk between channels.

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Andreas Kelz, Thomas Jahn, Justus Neumann, Martin M. Roth, Monika Rutowska, Christer Sandin, Harald Nicklas, Heiko Anwand, and C. Schmidt "Development of deployable fibre integral-field-units for the E-ELT", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915151 (28 July 2014); https://doi.org/10.1117/12.2056482

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KEYWORDS

Telescopes

Galactic astronomy

Spectrographs

Molybdenum

Optical fibers

Device simulation

Manufacturing

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