scholarly journals Distributed detection of hydrogen and deuterium diffusion into a single-mode optical fiber with chirped-pulse phase-sensitive optical time-domain reflectometry

2019 ◽  
Vol 44 (21) ◽  
pp. 5286
Author(s):  
A. Garcia-Ruiz ◽  
A. Morana ◽  
L. Costa ◽  
H. F. Martins ◽  
S. Martin-Lopez ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Time Domain ◽  
Single Mode ◽  
Time Domain Reflectometry ◽  
Distributed Detection ◽  
Chirped Pulse ◽  
Single Mode Optical Fiber ◽  
Optical Time Domain Reflectometry ◽  
Phase Sensitive ◽  
Optical Time

scholarly journals Dynamic Measurements of 1000 Microstrains Using Chirped-Pulse Phase-Sensitive Optical Time-Domain Reflectometry

2019 ◽  
Vol 37 (18) ◽  
pp. 4888-4895 ◽  
Author(s):  
Hari Datta Bhatta ◽  
Luis Costa ◽  
Andres Garcia-Ruiz ◽  
Maria R. Fernandez-Ruiz ◽  
Hugo F. Martins ◽  
...  
Keyword(s):  
Time Domain ◽  
Time Domain Reflectometry ◽  
Dynamic Measurements ◽  
Chirped Pulse ◽  
Pulse Phase ◽  
Optical Time Domain Reflectometry ◽  
Phase Sensitive ◽  
Optical Time

scholarly journals Phase-Sensitive Optical Time Domain Reflectometry with Rayleigh Enhanced Optical Fiber

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Nageswara Lalam ◽  
Paul S. Westbrook ◽  
Jie Li ◽  
Ping Lu ◽  
Michael P. Buric
Keyword(s):  
Optical Fiber ◽  
Time Domain ◽  
Time Domain Reflectometry ◽  
Optical Time Domain Reflectometry ◽  
Phase Sensitive ◽  
Optical Time

scholarly journals Chirped-pulse phase-sensitive optical time-domain reflectometry

2016 ◽  
Author(s):  
Miguel Gonzalez-Herraez ◽  
Andres Garcia-Ruiz ◽  
Pedro Corredera ◽  
Juan Pastor-Graells ◽  
María R. Fernández-Ruiz ◽  
...  
Keyword(s):  
Time Domain ◽  
Time Domain Reflectometry ◽  
Chirped Pulse ◽  
Pulse Phase ◽  
Optical Time Domain Reflectometry ◽  
Phase Sensitive ◽  
Optical Time

scholarly journals Recent Advances in Phase-Sensitive Optical Time Domain Reflectometry (Ф-OTDR)

2021 ◽  
Vol 11 (1) ◽  
pp. 1-30
Author(s):  
Yunjiang Rao ◽  
Zinan Wang ◽  
Huijuan Wu ◽  
Zengling Ran ◽  
Bing Han
Keyword(s):  
Fiber Optics ◽  
Time Domain ◽  
Acoustic Waves ◽  
Rapid Development ◽  
Development Stage ◽  
Time Domain Reflectometry ◽  
Rayleigh Backscattering ◽  
Optical Time Domain Reflectometry ◽  
Phase Sensitive ◽  
Optical Time

AbstractPhase-sensitive optical time domain reflectometry (Ф-OTDR) is an effective way to detect vibrations and acoustic waves with high sensitivity, by interrogating coherent Rayleigh backscattering light in sensing fiber. In particular, fiber-optic distributed acoustic sensing (DAS) based on the Ф-OTDR with phase demodulation has been extensively studied and widely used in intrusion detection, borehole seismic acquisition, structure health monitoring, etc., in recent years, with superior advantages such as long sensing range, fast response speed, wide sensing bandwidth, low operation cost and long service lifetime. Significant advances in research and development (R&D) of Ф-OTDR have been made since 2014. In this review, we present a historical review of Ф-OTDR and then summarize the recent progress of Ф-OTDR in the Fiber Optics Research Center (FORC) at University of Electronic Science and Technology of China (UESTC), which is the first group to carry out R&D of Ф-OTDR and invent ultra-sensitive DAS (uDAS) seismometer in China which is elected as one of the ten most significant technology advances of PetroChina in 2019. It can be seen that the Ф-OTDR/DAS technology is currently under its rapid development stage and would reach its climax in the next 5 years.

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