Dynamic range enhancement in fiber Bragg grating sensors using a multimodelaser diode

Authors
Moreira, PJ Ferreira, LA Santos, JL Farahi, F
Citation
Pj. Moreira et al., Dynamic range enhancement in fiber Bragg grating sensors using a multimodelaser diode, IEEE PHOTON, 11(6), 1999, pp. 703-705
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
10411135 → ACNP
Volume
11
Issue
6
Year of publication
1999
Pages
703 - 705
Database
ISI
SICI code
1041-1135(199906)11:6<703:DREIFB>2.0.ZU;2-N
Abstract
A signal processing scheme for fiber Bragg grating sensors based on the uti lization of adjacent modes of a multimode laser diode light source is demon strated which allows high sensitivity to be obtained over a large measureme nt range, For strain measurements, a range of 4800 mu epsilon is achieved w ith a resolution of 0.08 mu epsilon/root Hz, yielding a dynamic range of 95 dB.