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30 September 2004 Preparation and testing of a fiber MOS unit feeding a near-infrared spectrograph
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Abstract
We describe the procedures adopted to realize the fiber unit for feeding the near IR multi-object spectrometer GOHSS. Since a scarce literature is available on this subject, all the steps of the fabrication processes are explained and documented through a detailed illustrative material: in particular the polishing methods of the fiber ends are addressed along with the criteria for evaluating the achieved results; the preparation and application of the ferrules; the matching with the input micro-lens; finally, the laboratory tests to measure the focal ratio degradation of each fiber are presented aiming also to certify the quality of the realized device.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roberto Speziali, Daniele Liberi, Fausto Cortecchia, Francesco D'Alessio, Gianluca Li Causi, Dario Lorenzetti, Fernando Pedichini, and Fabrizio Vitali "Preparation and testing of a fiber MOS unit feeding a near-infrared spectrograph", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.551294; https://doi.org/10.1117/12.551294
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