Low-coherence interferometry with synthesis of coherence function

Yuichi Teramura, Keiichi Suzuki, Masayuki Suzuki, Fumihiko Kannari

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    Synthesis of a coherence function by manipulation of the spectral phase of low-coherent light with a segmented liquid-crystal phase modulator and its application in a low-coherence interferometry are described. Effects of space–time coupling caused at diffractive gratings and second-order dispersion at the spatial light modulator on the coherence function synthesis are theoretically and experimentally verified. Various coherence functions can be shaped with phase-only masks designed by simulated annealing optimization algorithm. We utilized this technique for a novel optical low-coherence reflectometry without any mechanical movement for scanning optical delay.

    Original languageEnglish
    Pages (from-to)5974-5980
    Number of pages7
    JournalApplied Optics
    Volume38
    Issue number28
    DOIs
    Publication statusPublished - 1999 Oct 1

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Engineering (miscellaneous)
    • Electrical and Electronic Engineering

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