22 KM DISTRIBUTED STRAIN SENSOR USING BRILLOUIN LOSS IN AN OPTICAL-FIBER

Authors
BAO X WEBB DJ JACKSON DA
Citation
X. Bao et al., 22 KM DISTRIBUTED STRAIN SENSOR USING BRILLOUIN LOSS IN AN OPTICAL-FIBER, Optics communications, 104(4-6), 1994, pp. 298-302
Citations number
5
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
104
Issue
4-6
Year of publication
1994
Pages
298 - 302
Database
ISI
SICI code
0030-4018(1994)104:4-6<298:2KDSSU>2.0.ZU;2-U
Abstract
A novel distributed strain sensor is presented utilizing the strain de pendence of the frequency at which the Brillouin loss is maximized in the interaction between a cw laser and a pulsed laser. A strain resolu tion of 20 mu epsilon with a spatial resolution of 5 m has been achiev ed with a 22 km sensing length.