Open Access
Open access
MDPI
Sensors
,  volume 21 ,  issue 21 ,  pages 7077

Sensitivity Improvement of Phi-OTDR by Fiber Cable Coils

Publication type: Journal Article
Publication date: 2021-10-26
MDPI
scimago Q1
wos Q2
SJR: 0.764
CiteScore: 8.2
Impact factor: 3.5
ISSN: 14243210, 14248220
DOI:  10.3390/s21217077
PubMed ID:  34770385
Biochemistry
Analytical Chemistry
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering
Instrumentation
Abstract

We present a theoretical and experimental study in which we increased the sensitivity of a phase-sensitive optical time-domain reflectometer (phi-OTDR). This was achieved by constructing coils in the sensor cable, which increased the total amplitude of the impact on the fiber. We demonstrate this theoretically using the example of a phase-sensitive reflectometer model and practically in testing grounds with a buried nearby conventional sensor and a sensor with coils. The sensitivity increased 2.2 times. We detected 95% of events when using coils, versus 20% when using a straight cable. The suggested method does not require any modifications to the device.

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GOST |
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GOST Copy
Stepanov K. V. et al. Sensitivity Improvement of Phi-OTDR by Fiber Cable Coils // Sensors. 2021. Vol. 21. No. 21. p. 7077.
GOST all authors (up to 50) Copy
Stepanov K. V., Zhirnov A., Koshelev K. I., Chernutsky A., Khan R. I., Pnev A. B. Sensitivity Improvement of Phi-OTDR by Fiber Cable Coils // Sensors. 2021. Vol. 21. No. 21. p. 7077.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.3390/s21217077
UR - https://doi.org/10.3390/s21217077
TI - Sensitivity Improvement of Phi-OTDR by Fiber Cable Coils
T2 - Sensors
AU - Stepanov, Konstantin V
AU - Zhirnov, Andrey
AU - Koshelev, Kirill I
AU - Chernutsky, Anton
AU - Khan, Roman I
AU - Pnev, Alexey B
PY - 2021
DA - 2021/10/26
PB - MDPI
SP - 7077
IS - 21
VL - 21
PMID - 34770385
SN - 1424-3210
SN - 1424-8220
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2021_Stepanov,
author = {Konstantin V Stepanov and Andrey Zhirnov and Kirill I Koshelev and Anton Chernutsky and Roman I Khan and Alexey B Pnev},
title = {Sensitivity Improvement of Phi-OTDR by Fiber Cable Coils},
journal = {Sensors},
year = {2021},
volume = {21},
publisher = {MDPI},
month = {oct},
url = {https://doi.org/10.3390/s21217077},
number = {21},
pages = {7077},
doi = {10.3390/s21217077}
}
MLA
Cite this
MLA Copy
Stepanov, Konstantin V., et al. “Sensitivity Improvement of Phi-OTDR by Fiber Cable Coils.” Sensors, vol. 21, no. 21, Oct. 2021, p. 7077. https://doi.org/10.3390/s21217077.