The one-dimensional nature of the optical fibre offers the possibility for its use in a range of distributed measurement sensors. Thus, in addition to all the accepted advantages offered by optical fibres in the sensing function, one has the advantage of a knowledge of the spatial distribution of the measurand. Methods so far explored for implementation of both intrinsic and extrinsic distributed systems are discussed, and prospects for the future are reviewed.
A. J. Rogers,
"Intrinsic And Extrinsic Distributed Optical-Fibre Sensors", Proc. SPIE 0566, Fiber Optic and Laser Sensors III, (3 January 1986); doi: 10.1117/12.949796; https://doi.org/10.1117/12.949796