150  km fast BOTDA based on the optical chirp chain probe wave and Brillouin loss scheme

2018 ◽  
Vol 43 (19) ◽  
pp. 4679 ◽  
Author(s):  
Yongkang Dong ◽  
Benzhang Wang ◽  
Chao Pang ◽  
Dengwang Zhou ◽  
Dexin Ba ◽  
...  
Keyword(s):  
2021 ◽  
Vol 103 (2) ◽  
Author(s):  
Jifang Rong ◽  
Hua Yang ◽  
Yuzhe Xiao ◽  
Yufang Chen
Keyword(s):  

2011 ◽  
Vol 11 (4) ◽  
pp. 1067-1068 ◽  
Author(s):  
Ander Zornoza ◽  
Aldo Minardo ◽  
Romeo Bernini ◽  
Alayn Loayssa ◽  
Luigi Zeni

2012 ◽  
Vol 85 (5) ◽  
Author(s):  
Yuki Susa ◽  
Yutaka Shikano ◽  
Akio Hosoya

2017 ◽  
Author(s):  
Sheng Wang ◽  
Zhisheng Yang ◽  
Xiaobin Hong ◽  
Wenqiao Lin ◽  
Jian Wu
Keyword(s):  

2019 ◽  
Author(s):  
Lj. Stevanović ◽  
A. Maluckov ◽  
N. Filipović ◽  
V. Pavlović
Keyword(s):  

2016 ◽  
Vol 24 (18) ◽  
pp. 21046 ◽  
Author(s):  
Xiaobin Hong ◽  
Wenqiao Lin ◽  
Zhisheng Yang ◽  
Sheng Wang ◽  
Jian Wu

1999 ◽  
Vol 13 (16) ◽  
pp. 541-546
Author(s):  
C. W. A. PASCHOAL ◽  
J. C. PENAFORTE ◽  
I. GUEDES

In this work we extend the conventional theory of the two-wave mixing in Kerr-like media, in order to take into account two different contributions to nonlinear gain. To this end, we use a modified Debye relaxation relation to obtain the dynamical behavior of the nonlinearity and consequently, derive the expressions for pump and probe wave intensities. The two-wave mixing gain coefficient Γ1 is calculated as a function of several parameters.


Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4311 ◽  
Author(s):  
Jaffar Emad Kadum ◽  
Cheng Feng ◽  
Thomas Schneider

The excess noise due to stimulated Brillouin scattering (SBS) in gain and loss-based Brillouin optical time-domain analyzers (BOTDA) has been investigated theoretically and experimentally for the first time to the best of our knowledge. This investigation provides a full insight to the SBS-induced noise distribution, which mainly comes from phase-to-intensity conversion noise and the beating noise between the probe wave and spontaneous Brillouin scattering. A complete theoretical model, which is in good agreement with the experimental results, is presented to describe the noise. The results show that a loss-based BOTDA setup gives a better noise performance than a gain-based one in both time and frequency domain. The SBS-induced noise has been characterized in dependence on the pump and probe power and the spatial resolution.


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