Distributed fiber sensor network using telecom cables as sensing media: technology advancements and applications

Distributed fiber optic sensing (DFOS) is a rapidly evolving field that allows the existing optical fiber infrastructure for telecommunications to be reused for wide-area sensing….it is possible to realize distributed vibration and temperature sensors with good sensitivity at every fiber position, and spatial resolution is determined by the bandwidth of the interrogation signal. In this paper, we will review the main technologies in currently deployed DFOS….We report recent distributed vibration sensing, distributed acoustic sensing, and distributed temperature sensing field trial results over an existing network….showing that the network is capable of simultaneous traffic and temperature monitoring….example of network modification to make passive optical networks compatible with DFOS by adding reflective semiconductor optical amplifiers at optical network units.
Distributed fiber sensor network using telecom cables as sensing media: technology advancements and applications
Journal of Optical Communications and Networking Volume: 14, Issue: 1, January 2022 reported on IEEE Xplore
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