A DISTRIBUTED FREQUENCY-MODULATION CONTINUOUS-WAVE FIBER STRESS SENSOR-BASED ON A BIREFRINGENT SAGNAC RING CONFIGURATION

Authors
CAMPBELL M ZHENG G WALLACE PA HOLMESSMITH AS
Citation
M. Campbell et al., A DISTRIBUTED FREQUENCY-MODULATION CONTINUOUS-WAVE FIBER STRESS SENSOR-BASED ON A BIREFRINGENT SAGNAC RING CONFIGURATION, Optical review, 4(1A), 1997, pp. 114-116
Citations number
7
Categorie Soggetti
Optics
Journal title
Optical review → ACNP
ISSN journal
13406000
Volume
4
Issue
1A
Year of publication
1997
Pages
114 - 116
Database
ISI
SICI code
1340-6000(1997)4:1A<114:ADFCFS>2.0.ZU;2-0
Abstract
A new distributed stress sensor, based on a birefringent fiber Sagnac ring configuration and frequency modulation continuous wave technology , has been investigated. The two forward-coupled mode beams in the Sag nac ring, induced by an applied stress at any given point along the fi ber length, produce a beat frequency which can be analysed to determin e, simultaneously, the magnitude and position of the stress. The syste m has a reasonable spatial resolution of 1 m in a dynamic sensing rang e of 50 m.