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Distributed vibration sensor with a lasing phase-sensitive OTDR
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DOI：10.1364/OE.476182.png)
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Abstract
En 中文
The authors experimentally demonstrate the operation of a lasing phase-sensitive optical time-domain reflectometer (Phi-OTDR) based on random feedback from a sensing fiber. Here, the full output of the laser provides the sensing signal, in contrast to the small backscattered signal measured in a conventional OTDR. In this proof-of-principle demonstration, the laser operates as a distributed vibration sensor with signal-to-noise ratio of 23-dB and 1.37-m spatial resolution. (c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
DOPED FIBER
RAYLEIGH BACKSCATTERING
RING LASER
GRATINGS
STRAIN
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W