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Proceedings Paper

Multicore fibre Bragg grating developments for OH suppression
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Paper Abstract

We discuss the development of multi-core fiber Bragg gratings (FBGs) to be applied to astrophotonics, more specifically to near-infrared spectroscopy for ground-based instruments. The multi-core FBGs require over 100 notches to reject the OH lines in a broad wavelength range (160 nm). The number of cores of the fiber should correspond to the mode number in the multi-mode fibers and should be large enough to be able to capture a sufficient amount of light from the telescope. A phase-mask based technique is used to fabricate the multi-core FBGs.

Paper Details

Date Published: 13 September 2012
PDF: 10 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84503L (13 September 2012); doi: 10.1117/12.925791
Show Author Affiliations
Seong-sik Min, Australian Astronomical Observatory (Australia)
The Univ. of Sydney (Australia)
Christopher Trinh, The Univ. of Sydney (Australia)
Sergio Leon-Saval, The Univ. of Sydney (Australia)
Nemanja Jovanovic, Australian Astronomical Observatory (Australia)
Macquarie Univ. (Australia)
Peter Gillingham, Australian Astronomical Observatory (Australia)
Joss Bland-Hawthorn, The Univ. of Sydney (Australia)
Jon Lawrence, Australian Astronomical Observatory (Australia)
Tim A. Birks, Univ. of Bath (United Kingdom)
Martin M. Roth, Leibniz-Institut für Astrophysik Potsdam (Germany)
Roger Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
Lisa Fogarty, 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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