TITLE

Optic fiber temperature sensor based on cascading fiber Bragg gratings

AUTHOR(S)
Xu, Jin; Wang, Rongping; Cabani, Adnane
PUB. DATE
January 2019
SOURCE
AIP Advances;Jan2019, Vol. 9 Issue 1, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper, we demonstrate a novel method of distributed temperature sensing in optical fibers. The method is based on cascading fiber Bragg gratings (FBGs) single-ended Brillouin optical time-domain analyzer (BOTDA). This proposal applies the cascading FBGs both as a reflector and an optical filter to improves the measurement. Experimental results show that a 75-km sensing range with 3°C temperature resolution and 5 m spatial resolution are achieved.
ACCESSION #
134406786

 

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