Time biasing due to the slow-light effect in distributed fiber-optic Brillouin sensors

The influence of the slow-light effect on the performance of distributed Brillouin sensors is studied. We show that, while in most situations it can be neglected, it may greatly affect the results obtained for certain experimental configurations. More specifically, for one of the experimental arrang...

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Bibliographic Details
Published inOptics letters Vol. 31; no. 6; p. 715
Main Authors Thévenaz, Luc, Song, Kwang Yong, Herráez, Miguel González
Format Journal Article
LanguageEnglish
Published United States 15.03.2006
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Summary:The influence of the slow-light effect on the performance of distributed Brillouin sensors is studied. We show that, while in most situations it can be neglected, it may greatly affect the results obtained for certain experimental configurations. More specifically, for one of the experimental arrangements described in the literature (a strong continuous-wave pump and a weak pulsed probe) we show that this effect induces a large time biasing of the traces that depends not only on the fiber length but also on the frequency separation between pump and probe. This biasing reduces the available resolution in this experimental arrangement.
ISSN:0146-9592
DOI:10.1364/OL.31.000715