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Proceedings Paper

Progress and challenges with the Dragonfly instrument; an integratedphotonic pupil-remapping interferometer
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Paper Abstract

High contrast imaging techniques such as aperture masking interferometry allow for the detection of faint companions such as substellar companions by utilizing light from the planet itself. This allows access to study a larger population of planetary companions as compared to the transit technique where only systems viewed edge on can be studied, for example. However, aperture masking has several shortcomings including, low throughputs, limited Fourier coverage, and leakage of residual atmospheric noise due to phase corrugations across each sub-apertures. These limitations can be overcome by remapping the pupil with single-mode waveguides. We present an integrated pupil remapping interferometer, known as Dragonfly, that aims to do just that. We discuss the progress we have made over the past year in developing a stable and robust instrument and elucidate challenges and the innovative solutions that were applied. Finally we discuss improvements to the instrument that will enable future scientific endeavors and outline the expected performance limitations.

Paper Details

Date Published: 12 September 2012
PDF: 9 pages
Proc. SPIE 8445, Optical and Infrared Interferometry III, 844505 (12 September 2012); doi: 10.1117/12.926012
Show Author Affiliations
Nemanja Jovanovic, Macquarie Univ. (Australia)
Macquarie Univ. Research Ctr. in Astronomy (Australia)
Australian Astronomical Observatory (Australia)
Peter G. Tuthill, Sydney Institute for Astronomy, The Univ. of Sydney (Australia)
Ctr. for Ultrahigh Bandwidth devices for Optical Systems (Australia)
Barnaby Norris, Sydney Institute for Astronomy, The Univ. of Sydney (Australia)
Simon Gross, Macquarie Univ. (Australia)
Ctr. for Ultrahigh Bandwidth devices for Optical Systems (Australia)
Paul Stewart, Sydney Institute for Astronomy, The Univ. of Sydney (Australia)
Ned Charles, Sydney Institute for Astronomy, The Univ. of Sydney (Australia)
Sylvestre Lacour, Observatoire de Paris à Meudon (France)
Jon Lawrence, Macquarie Univ. (Australia)
Macquarie Univ. Research Ctr. in Astronomy (Australia)
Australian Astronomical Observatory (Australia)
Gordon Robertson, Sydney Institute for Astronomy, The Univ. of Sydney (Australia)
Alexander Fuerbach, Macquarie Univ. (Australia)
Ctr. for Ultrahigh Bandwidth devices for Optical Systems (Australia)
Michael J. Withford, Macquarie Univ. (Australia)
Macquarie Univ. Research Ctr. in Astronomy (Australia)
Ctr. for Ultrahigh Bandwidth devices for Optical Systems (Australia)


Published in SPIE Proceedings Vol. 8445:
Optical and Infrared Interferometry III
Françoise Delplancke; Jayadev K. Rajagopal; Fabien Malbet, Editor(s)

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