Distributed vibration sensor with a lasing phase-sensitive OTDR

doi:10.1364/OE.476182

2022-10-14

Marlon M. Correia *

Walter Margulis

Anderson S. L. Gomes

Jean Pierre von der Weid

DOI：10.1364/OE.476182

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摘要

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

Keyword:

DOPED FIBER

RAYLEIGH BACKSCATTERING

RING LASER

GRATINGS

STRAIN

期刊

Optics Express

IF:

3.3

论文数:

6.1W

被引数:

14.3W

机构

Universidade Federal de Pernambuco

学者数:

1.3W

论文数: 7.3K

被引数: 5.3K

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