Photonic technologies for a pupil remapping interferometer

Peter Tuthill*, Nemanja Jovanovic, Sylvestre Lacour, Andrew Lehmann, Martin Ams, Graham Marshall, Jon Lawrenc, Michael Withford, Gordon Robertson, Michael Ireland, Benjamin Pope, Paul Stewart

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    27 Citations (Scopus)
    41 Downloads (Pure)


    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.

    Original languageEnglish
    Title of host publicationOptical and Infrared Interferometry II
    EditorsWilliam C. Danchi, Françoise Delplancke, Jayadev K. Rajagopal
    Place of PublicationWashington, DC
    Number of pages9
    ISBN (Print)9780819482242
    Publication statusPublished - 2010
    EventOptical and Infrared Interferometry II - San Diego, CA, United States
    Duration: 27 Jun 20102 Jul 2010


    OtherOptical and Infrared Interferometry II
    Country/TerritoryUnited States
    CitySan Diego, CA

    Bibliographical note

    Copyright 2010 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


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