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Proceedings Paper

Fibre Bragg gratings for temporal spectral astronomy
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Paper Abstract

Temporal spectral astronomy or time resolved astronomy is the study of astrophysical phenomena that show spectral variability on very short timescales. These timescales are often too short to be resolved by current astronomical equipment. The lack of detailed observations in this area keeps important theoretical descriptions of astronomical events unclear or incomplete. To resolve this, instruments with very high spectral resolution and fast read-out speeds are needed. Photonic devices such as fibre Bragg gratings (FBGs) offer potential advantages. The use of Bragg gratings in optical fibres allows for very high spectral resolution and the stability and precision needed for the observation of the fast variation of one particular spectral line, with the potential to observe multiple spectral lines at once. Here, we present the concept for a fibre Bragg grating based instrument specifically for temporal spectral astronomy and we discuss the different profiles of FBGs for such applications.

Paper Details

Date Published: 22 July 2010
PDF: 8 pages
Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77392C (22 July 2010); doi: 10.1117/12.856784
Show Author Affiliations
Geraldine Mariën, Macquarie Univ. (Australia)
Nick Cvetojevic, Macquarie Univ. (Australia)
Nemanja Jovanovic, Macquarie Univ. (Australia)
Australian Astronomical Observatory (Australia)
Judith Dawes, Macquarie Univ. (Australia)
Joss Bland-Hawthorn, Sydney Institute for Astronomy, Univ. of Sydney (Australia)
Roger Haynes, innoFSPEC, Astrophysikalisches Institut Potsdam (Germany)
Jon Lawrence, Macquarie Univ. (Australia)
Australian Astronomical Observatory (Australia)
Quentin Parker, Macquarie Univ. (Australia)
Australian Astronomical Observatory (Australia)
Michael J. Withford, Macquarie Univ. (Australia)


Published in SPIE Proceedings Vol. 7739:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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