Analysis of Brillouin Frequency Shift in Distributed Optical Fiber Sensor System for Strain and Temperature Monitoring

Nageswara Lalam, Wai Pang Ng, Xuewu Dai, Qiang Wu, Yong Qiang Fu

Abstract

In this paper, we have analyzed Brillouin frequency shift (BFS) in single mode silica optical fiber. The BFS is analyzed in conventional Brillouin optical time domain analysis (BOTDA) at operating wavelength of 1550 nm by a pump-probe technique. The effects of strain and temperature on BFS are fully characterized. We found that, the BFS change of 0.06 MHz/µ-strain and 1.26 MHz/oC, respectively. The BFS changes in Brillouin gain and Brillouin loss mechanism have been analyzed. In addition, we also presented Brillouin linewidth and peak gain variations of Brillouin gain spectrum with various temperature and strain values. The results demonstrate, the BFS have a strong linear relationship with strain and temperature along the sensing fiber.

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Paper Citation


in Harvard Style

Lalam N., Ng W., Dai X., Wu Q. and Fu Y. (2016). Analysis of Brillouin Frequency Shift in Distributed Optical Fiber Sensor System for Strain and Temperature Monitoring . In Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: OSENS, (PHOTOPTICS 2016) ISBN 978-989-758-174-8, pages 333-340. DOI: 10.5220/0005842803330340


in Bibtex Style

@conference{osens16,
author={Nageswara Lalam and Wai Pang Ng and Xuewu Dai and Qiang Wu and Yong Qiang Fu},
title={Analysis of Brillouin Frequency Shift in Distributed Optical Fiber Sensor System for Strain and Temperature Monitoring},
booktitle={Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: OSENS, (PHOTOPTICS 2016)},
year={2016},
pages={333-340},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005842803330340},
isbn={978-989-758-174-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: OSENS, (PHOTOPTICS 2016)
TI - Analysis of Brillouin Frequency Shift in Distributed Optical Fiber Sensor System for Strain and Temperature Monitoring
SN - 978-989-758-174-8
AU - Lalam N.
AU - Ng W.
AU - Dai X.
AU - Wu Q.
AU - Fu Y.
PY - 2016
SP - 333
EP - 340
DO - 10.5220/0005842803330340