Fiber Bragg grating vibration sensor using incoherent light

Citation
N. Takahashi et al., Fiber Bragg grating vibration sensor using incoherent light, JPN J A P 1, 40(5B), 2001, pp. 3632-3636
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Volume
40
Issue
5B
Year of publication
2001
Pages
3632 - 3636
Database
ISI
SICI code
0021-4922(200105)40:5B<3632:FBGVSU>2.0.ZU;2-S
Abstract
The operation of an optical fiber vibration sensor using two fiber Bragg gr atings (FBGs) and incoherent light has been demonstrated, based on the inte nsity-modulation method. One FBG is used to make a narrow-band incoherent l ight source from a broad-band light source and the other is used for sensin g the vibration of a solid. Stable and linear operation of the sensor is re alized without optical isolators and fusion splicing. The developed sensor is expected to be temperature insensitive if the temperatures of the two FB Gs are kept same during the operation.