Fibre Bragg gratings for temporal spectral astronomy

Geraldine Mariën; Nick Cvetojevic; Nemanja Jovanovic; Judith Dawes; Joss Bland-Hawthorn; Roger Haynes; Jon Lawrence; Quentin Parker; Michael J. Withford

doi:10.1117/12.856784

22 July 2010 Fibre Bragg gratings for temporal spectral astronomy

Geraldine Mariën, Nick Cvetojevic, Nemanja Jovanovic, Judith Dawes, Joss Bland-Hawthorn, Roger Haynes, Jon Lawrence, Quentin Parker, Michael J. Withford

Author Affiliations +

Proceedings Volume 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation; 77392C (2010) https://doi.org/10.1117/12.856784
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

Citation Download Citation

Geraldine Mariën, Nick Cvetojevic, Nemanja Jovanovic, Judith Dawes, Joss Bland-Hawthorn, Roger Haynes, Jon Lawrence, Quentin Parker, and Michael J. Withford "Fibre Bragg gratings for temporal spectral astronomy", Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77392C (22 July 2010); https://doi.org/10.1117/12.856784

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