Utilization of a dispersion-shifted fiber for simultaneous measurement of distributed strain and temperature through Brillouin frequency shift

Citation
Cc. Lee et al., Utilization of a dispersion-shifted fiber for simultaneous measurement of distributed strain and temperature through Brillouin frequency shift, IEEE PHOTON, 13(10), 2001, pp. 1094-1096
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
10411135 → ACNP
Volume
13
Issue
10
Year of publication
2001
Pages
1094 - 1096
Database
ISI
SICI code
1041-1135(200110)13:10<1094:UOADFF>2.0.ZU;2-1
Abstract
In this letter, we propose and realize a new method that utilizes a dispers ion-shifted fiber having compound compositions with different temperature c oefficients in core to simultaneously measure the distributed strain and te mperature based on Brillouin frequency shift. In a 3682-m sensing length of large-effective-area nonzero dispersion-shifted fiber, a temperature resol ution of 5 degreesC, a strain resolution of 60 mu epsilon, and a spatial re solution of 2 in are achieved simultaneously.