
Proceedings Paper
Optical fibre tapers: focal reduction and magnificationFormat | Member Price | Non-Member Price |
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Paper Abstract
Optical fibre tapers show great promise as a simple and highly effective means of efficiently coupling broadband light
into astronomical instruments. Fibre tapers can replace bulk optics systems such as focal plane reduction and
magnification optics by controlling and manipulating image scale and beam angle in a small, robust and cost effective
device. However, like any new photonic device fibre tapers must be thoroughly characterised before they can be applied
to astronomy. The specific characteristics of importance are the device’s ability to maintain the etendue of the system
and to transmit light over a broad wavelength range with minimal loss. In this paper we present the manufacturing
technique and preliminary results for the first large taper transition prototype devices manufactured in-house intended for
astronomy applications. Characteristics addressed include: beam angle, focal ratio degradation and throughput for
devices with a conversion ratio of 5 (5 x focal reduction or magnification) for two taper transition lengths.
Paper Details
Date Published: 13 September 2012
PDF: 13 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84503J (13 September 2012); doi: 10.1117/12.925404
Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)
PDF: 13 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84503J (13 September 2012); doi: 10.1117/12.925404
Show Author Affiliations
Dionne M. Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
Roger Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
Roger Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
J. C. Olaya, Leibniz-Institut für Astrophysik Potsdam (Germany)
Sergio G. Leon-Saval, The Univ. of Sydney (Australia)
Sergio G. Leon-Saval, The Univ. of Sydney (Australia)
Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)
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