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Proceedings Article

Photonic technologies for a pupil remapping interferometer

[+] Author Affiliations
Peter Tuthill, Gordon Robertson, Michael Ireland, Benjamin Pope, Paul Stewart

The Univ. of Sydney (Australia)

Nemanja Jovanovic, Jon Lawrence

Macquarie Univ. (Australia) and Australian Astronomical Observatory (Australia)

Sylvestre Lacour

Observatoire de Paris à Meudon (France)

Andrew Lehmann

Macquarie Univ. (Australia)

Martin Ams, Graham Marshall, Michael Withford

Macquarie Univ. (Australia) and Ctr. for Ultrahigh bandwidth Devices for Optical Systems (Australia)

Proc. SPIE 7734, Optical and Infrared Interferometry II, 77341P (July 21, 2010); doi:10.1117/12.856770
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From Conference Volume 7734

  • Optical and Infrared Interferometry II
  • San Diego, California, USA | June 27, 2010

abstract

Interest in pupil-remapping interferometry, in which a single telescope pupil is fragmented and recombined using fiber optic technologies, has been growing among a number of groups. As a logical extrapolation from several highly successful aperture masking programs underway worldwide, pupil remapping offers the advantage of spatial filtering (with single-mode fibers) and in principle can avoid the penalty of low throughput inherent to an aperture mask. However in practice, pupil remapping presents a number of difficult technological challenges including injection into the fibers, pathlength matching of the device, and stability and reproducibility of the results. Here we present new approaches based on recently-available photonic technologies in which coherent threedimensional waveguide structures can be sculpted into bulk substrate. These advances allow us to miniaturize the photonic processing into a single, robust, thermally stable element; ideal for demanding observatory or spacecraft environments. Ultimately, a wide range of optical functionality could be routinely fabricated into such structures, including beam combiners and dispersive or wavelength selective elements, bringing us closer to the vision of an interferometer on a chip.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Peter Tuthill ; Nemanja Jovanovic ; Sylvestre Lacour ; Andrew Lehmann ; Martin Ams, et al.
"Photonic technologies for a pupil remapping interferometer", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77341P (July 21, 2010); doi:10.1117/12.856770; http://dx.doi.org/10.1117/12.856770


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