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Towards commercial polymer fiber Bragg grating sensors: review and applications - INVITED

Broadway, C. ; LEAL-JUNIOR, A. ; Marques, C. ; Min, R. ; Caucheteur, C.

Journal of Lightwave Technology Vol. 37, Nº 11, pp. 2605 - 2615, June, 2019.

ISSN (print): 0733-8724
ISSN (online):

Journal Impact Factor: 2,567 (in 2015)

Digital Object Identifier: 10.1109/JLT.2018.2885957

—Interest in polymer optical fiber Bragg gratings
(POFBGs) arises from the different material properties and
sensing modalities brought by polymers relative to silica.
Polymer fibers typically offer twice the sensitivity to
temperature of conventional silica fiber and increased
sensitivity to strain overall. In addition, polymer fibers have
higher elastic limits and as a result a larger range of operation
for physical constraints. While some polymers are effectively
humidity insensitive, others present inherent humidity
sensitivity. Their organic properties also allow a variety of
chemical processes to create (bio)chemical sensors, with the
consequences of fiber breakage in situ being less hazardous
than silica. These attributes have led to the use of POFBGs for
applications that remain complex using silica fibers. This
review article covers the progress towards commercialization
and the increasing number of specific applications.