Recent advances in Brillouin optical time domain reflectometry

Q Bai, Q Wang, D Wang, Y Wang, Y Gao, H Zhang… - Sensors, 2019 - mdpi.com
In the past two decades Brillouin-based sensors have emerged as a newly-developed
optical fiber sensing technology for distributed temperature and strain measurements …

High spatial resolution distributed fiber system for multi-parameter sensing based on modulated pulses

J Zhang, T Zhu, H Zhou, S Huang, M Liu, W Huang - Optics Express, 2016 - opg.optica.org
We demonstrate a cost-effective distributed fiber sensing system for the multi-parameter
detection of the vibration, the temperature, and the strain by integrating phase-sensitive …

Online ice-coating monitoring research on overhead transmission lines with Brillouin optical time domain reflectometry

Y Hao, N Liu, Y Kun, F Zhai, P Yang - Optical Fiber Technology, 2020 - Elsevier
Online monitoring the ice-coating status along the overhead transmission lines under
extreme weather is important for the safe operation and pre-warning of power …

Single-longitudinal-mode triple-ring Brillouin fiber laser with a saturable absorber ring resonator

Y Liu, M Zhang, J Zhang, Y Wang - Journal of Lightwave …, 2017 - ieeexplore.ieee.org
A single-longitudinal-mode triple-ring Brillouin fiber laser (TR-BFL) with a saturable
absorber ring (SAR) resonator is proposed and investigated experimentally. Triple ring is …

On-line temperature monitoring in power transmission lines based on Brillouin optical time domain reflectometry

Y Hao, Y Cao, Q Ye, H Cai, R Qu - Optik-International Journal for Light and …, 2015 - Elsevier
Abstracts The Brillouin frequency shift in single-mode fiber is linear to the temperature
change around the sensing fiber, so on-line temperature monitoring of three-phase cables …

Managing Brillouin frequency spacing for temperature measurement with Brillouin fiber laser sensor

Y Shang, R Guo, Y Liu, X Yi - Optical and Quantum Electronics, 2020 - Springer
Managing Brillouin frequency spacing for temperature measurement with Brillouin fiber laser
sensor is proposed and demonstrated. By managing Stokes light wave resonance of …

Triple Brillouin frequency spacing Brillouin fiber laser sensor for temperature measurement

Y Liu, Y Shang, X Yi, R Guo, Y Zheng - Optical Fiber Technology, 2020 - Elsevier
A triple Brillouin frequency spacing Brillouin fiber laser sensor for temperature measurement
is proposed and demonstrated. Fiber under test 1 (FUT1) with 10 km SMF and FUT2 with 5 …

Brillouin frequency shift of fiber distributed sensors extracted from noisy signals by quadratic fitting

H Zheng, Z Fang, Z Wang, B Lu, Y Cao, Q Ye, R Qu… - Sensors, 2018 - mdpi.com
It is a basic task in Brillouin distributed fiber sensors to extract the peak frequency of the
scattering spectrum, since the peak frequency shift gives information on the fiber …

[PDF][PDF] 布里渊光时域反射仪分布式光纤传感研究进展

包宇奔, 孙军**, 黄** - Laser & Optoelectronics Progress, 2020 - researching.cn
摘要布里渊光时域反射(BOTDR) 技术作为温度和应变测量的分布式光纤传感技术,
具有广阔的前景和巨大的应用潜力. 与基于其他原理的传感技术相比, BOTDR 拥有准确性高 …

Detailed evaluation of centroid analysis for extracting Brillouin frequency shift of fiber distributed sensors

H Zheng, Z Fang, Z Wang, B Lu, Y Cao… - IEEE Sensors …, 2018 - ieeexplore.ieee.org
Performances of centroid analysis (CA) used for extracting Brillouin frequency shift (BFS)
from noisy signals are studied in this paper. The variance of extracted BFS, ie, the minimum …