Phase error correction in wavefront curvature sensing via phase retrieval

Percival Almoro, Steen Grüner Hanson

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    Wavefront curvature sensing with phase error correction system is carried out using phase retrieval based on a partially-developed volume speckle field. Various wavefronts are reconstructed: planar, spherical, cylindrical, and a wavefront passing through the side of a bare optical fiber. Spurious fringe pattern in the reconstructions due to a small tilt in the plane illumination wave is detected and numerically corrected for. Difference in the curvatures of two spherical wavefronts is also evaluated. Possible applications include angular displacement and range measurements.
    Original languageEnglish
    Title of host publicationInterferometry 14 : Applications
    EditorsE. Novak, W. Osten, C. Gorecki
    Number of pages11
    Place of PublicationBellingham
    PublisherSPIE - International Society for Optical Engineering
    Publication date2008
    PagesArticle number: 70640F
    ISBN (Print)978-0-8194-7284-7
    DOIs
    Publication statusPublished - 2008
    EventConference on Interferometry XIV: Applications - San Diego, CA, United States
    Duration: 10 Aug 200814 Aug 2008
    Conference number: 14

    Conference

    ConferenceConference on Interferometry XIV
    Number14
    Country/TerritoryUnited States
    CitySan Diego, CA
    Period10/08/200814/08/2008
    SeriesProceedings of SPIE - The International Society for Optical Engineering
    ISSN0277-786X

    Keywords

    • Phase retrieval
    • Speckle
    • Fringe compensation
    • Wavefront sensing
    • Holography
    • Interferometry
    • Metrology
    • Phase

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