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

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