Application of core-ring-intensity-ratio to fiber speckle-hologram sensing

Shizhuo Yin, Cheng Lu, Francis T. Yu

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    A fiber speckle-hologram is formed by two coherent light fields, in which a speckle field emerging from a multimode fiber combines with a convergent reference beam. When the speckle-hologram is illuminated by the same speckle field from the fiber, a high intensity correlation peak is reconstructed. If the fiber is subjected to some status changes, the correlation peak gradually decreases and disappears. The main objective of this paper is to use a `core-ring-intensity-ratio' technique to analyze the correlation peak so the fiber status changes can be determined. An experimental demonstration to confirm this relationship is also given.

    Original languageEnglish (US)
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    PublisherPubl by Int Soc for Optical Engineering
    Number of pages11
    ISBN (Print)0819410128
    StatePublished - 1993
    EventOptical Computing and Neural Networks - Hsinchu, Taiwan
    Duration: Dec 16 1992Dec 17 1992

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    ISSN (Print)0277-786X


    OtherOptical Computing and Neural Networks
    CityHsinchu, Taiwan

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering


    Dive into the research topics of 'Application of core-ring-intensity-ratio to fiber speckle-hologram sensing'. Together they form a unique fingerprint.

    Cite this