FM-AM conversion by material dispersion in an optical fiber

We show that material and guide dispersion may be used effectively in an optical fiber to convert an FM signal to an AM signal after it traverses a certain minimum fiber length. This length depends on material and modal dispersion of the guide. An upper limit to the fiber length is established and i...

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Bibliographic Details
Published inOptics letters Vol. 6; no. 2; p. 58
Main Authors Bochove, E J, de Carvalho, E M, Filho, J E
Format Journal Article
LanguageEnglish
Published United States 01.02.1981
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Summary:We show that material and guide dispersion may be used effectively in an optical fiber to convert an FM signal to an AM signal after it traverses a certain minimum fiber length. This length depends on material and modal dispersion of the guide. An upper limit to the fiber length is established and is shown to be related to laser linewidth. We also discuss laser-mode selection and conversion in multimode fibers.
ISSN:0146-9592
DOI:10.1364/OL.6.000058