Heterodyne technique for measuring the amplitude and phase transfer functions of an optical modulator

Francis Pascal Romstad, Dan Birkedal, Jesper Mørk, Jørn Märcher Hvam

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    Abstract

    In this letter, we propose a technique based on heterodyne detection for accurately and simultaneously measuring the amplitude and phase transfer functions of an optical modulator. The technique is used to characterize an InGaAsp multiple quantum-well electroabsorption modulator. From the measurements we derive the small-signal alpha-parameter and the time-dependent chirp for different operation conditions.
    Original languageEnglish
    JournalI E E E Photonics Technology Letters
    Volume14
    Issue number5
    Pages (from-to)621-623
    ISSN1041-1135
    DOIs
    Publication statusPublished - 2002

    Bibliographical note

    Copyright: 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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