Liquid-level sensing method based on differential pulse-width pair Brillouin optical time-domain analysis and a self-heated high attenuation fiber

2020 ◽  
Vol 59 (3) ◽  
pp. 795 ◽  
Author(s):  
Hongying Zhang ◽  
Yifu Cheng ◽  
Kaiji Wu ◽  
Zhijun Yuan ◽  
Yongkang Dong
Keyword(s):  
Time Domain ◽  
Pulse Width ◽  
Time Domain Analysis ◽  
Differential Pulse ◽  
Domain Analysis ◽  
Liquid Level ◽  
High Attenuation ◽  
Optical Time

Golay-Differential Pulse Hybrid Coding Technology Based on Brillouin Optical Time Domain Analysis Sensors

2016 ◽  
Vol 36 (8) ◽  
pp. 0806002
Author(s):  
罗源 Luo Yuan ◽  
闫连山 Yan Lianshan ◽  
邵理阳 Shao Liyang ◽  
李宗雷 Li Zonglei ◽  
潘炜 Pan Wei ◽  
...  
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Differential Pulse ◽  
Domain Analysis ◽  
Hybrid Coding ◽  
Optical Time

scholarly journals Effects of Pump-Pulse Width and Temperature on Experimental Brillouin Gain Spectrum Obtained from Brillouin Optical Time-Domain Analysis Sensors

2020 ◽  
Vol 27 (1) ◽  
pp. 69-80
Author(s):  
Abul Kalam Azad
Keyword(s):  
Pump Pulse ◽  
Time Domain ◽  
Pulse Width ◽  
Nonlinear Least Squares ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Gain Spectrum ◽  
Least Squares Curve Fitting ◽  
Brillouin Gain ◽  
Optical Time

In this paper, the characteristics of Brillouin gain spectrum (BGS) obtained from a Brillouin optical time-domain analysis (BOTDA) sensor are investigated and analyzed experimentally. The measured BGSs obtained for various pump-pulse widths and temperatures are fitted with different spectrum profiles using nonlinear least-squares curve fitting technique. The fitting performances of used profiles are presented and analyzed. Based on such performances, the proper spectrum profile to be used in the fitting process is determined and used to extract key parameters of the measured BGSs accurately. The variations of such key parameters with pump-pulse widths and temperatures are also investigated and analyzed. The results reveal that pump-pulse widths and temperatures have significant effects on the extracted key parameters of the measured BGSs obtained from BOTDA sensors. Bangladesh Journal of Physics, 27(1), 69-80, June 2020

Single-fiber-based Brillouin Optical Time Domain Analysis with Far-end modulation

2021 ◽  
pp. 1-1
Author(s):  
Xia Gao ◽  
Xiaobin Hong ◽  
Sheng Wang ◽  
Xizi Sun ◽  
Liangming Xiong ◽  
...  
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Single Fiber ◽  
Optical Time

scholarly journals Brillouin optical time-domain analysis sensor assisted by Brillouin distributed amplification of pump pulses

2015 ◽  
Vol 23 (23) ◽  
pp. 30448 ◽  
Author(s):  
Javier Urricelqui ◽  
Mikel Sagues ◽  
Alayn Loayssa
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Optical Time

Proposal and simulation of differential double-pulse pair Brillouin optical time-domain analysis

2013 ◽  
Author(s):  
Jianguan Tang ◽  
Wenping Luo ◽  
Beiqing Chen ◽  
Huiyong Guo ◽  
Cui Zhang
Keyword(s):  
Time Domain ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Double Pulse ◽  
Pulse Pair ◽  
Optical Time
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