20-km distributed temperature sensor based on spontaneous brillouin scattering

Authors
Lecoeuche, V Hathaway, MW Webb, DJ Pannell, CN Jackson, DA
Citation
V. Lecoeuche et al., 20-km distributed temperature sensor based on spontaneous brillouin scattering, IEEE PHOTON, 12(10), 2000, pp. 1367-1369
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
10411135 → ACNP
Volume
12
Issue
10
Year of publication
2000
Pages
1367 - 1369
Database
ISI
SICI code
1041-1135(200010)12:10<1367:2DTSBO>2.0.ZU;2-J
Abstract
We report on a novel experimental setup for distributed measurement of temp erature, based on spontaneous Brillouin scattering in optical fiber. We hav e developed a mode-locked Brillouin fiber ring laser in order to generate t he dual frequency source required for a heterodyne detection of the backsca ttered signal, This relatively simple system enables temperature measuremen ts over 20 km with a spatial resolution of 7 m.