Characterization of Fiber Bragg Gratings by Phase-Sensitive Optical Low-Coherence Reflectometry

2006 ◽  
Vol 55 (5) ◽  
pp. 1696-1703 ◽  
Author(s):  
A.-F. Obaton ◽  
C. Palavicini ◽  
Y. Jaouenjaouen ◽  
E. Kerrinckx ◽  
Y. Quiquempois ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Low Coherence ◽  
Phase Sensitive ◽  
Optical Low Coherence Reflectometry

Versatile Characterization of Specialty Fibers Using the Phase-Sensitive Optical Low-Coherence Reflectometry Technique

2009 ◽  
Vol 27 (15) ◽  
pp. 3021-3033 ◽  
Author(s):  
R. Gabet ◽  
P. Hamel ◽  
Y. Jaouen ◽  
A.-F. Obaton ◽  
V. Lanticq ◽  
...  
Keyword(s):  
Low Coherence ◽  
Phase Sensitive ◽  
Optical Low Coherence Reflectometry

Local and Spectral Characterization of Optical Fibers and Fiber Bragg Gratings with Low Coherence Interferometry

2009 ◽  
Vol 28 (1) ◽  
pp. 108-126 ◽  
Author(s):  
V. Gaillard ◽  
X. Aduriz ◽  
N. Daher ◽  
X. Chapeleau ◽  
D. Leduc ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Spectral Characterization ◽  
Low Coherence ◽  
Low Coherence Interferometry

Optical low-coherence reflectometry for a distributed sensor array of fiber Bragg gratings

2008 ◽  
Vol 144 (1) ◽  
pp. 64-68 ◽  
Author(s):  
Weisheng Liu ◽  
Zu-Guang Guan ◽  
Guorong Liu ◽  
Chunsheng Yan ◽  
Sailing He
Keyword(s):  
Sensor Array ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Distributed Sensor ◽  
Low Coherence ◽  
Optical Low Coherence Reflectometry

Experimental synthesis of fiber Bragg gratings using optical low coherence reflectometry

2003 ◽  
Vol 82 (24) ◽  
pp. 4227-4229 ◽  
Author(s):  
Xavier Chapeleau ◽  
Dominique Leduc ◽  
Cyril Lupi ◽  
Roger Le Ny ◽  
Marc Douay ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Low Coherence ◽  
Optical Low Coherence Reflectometry

Phase-sensitive optical low-coherence reflectometry technique applied to the characterization of photonic crystal fiber properties

2005 ◽  
Vol 30 (4) ◽  
pp. 361 ◽  
Author(s):  
Carlos Palavicini ◽  
Yves Jaouën ◽  
Guy Debarge ◽  
Emmanuel Kerrinckx ◽  
Yves Quiquempois ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Fiber Properties ◽  
Low Coherence ◽  
Crystal Fiber ◽  
Phase Sensitive ◽  
Optical Low Coherence Reflectometry

Local characterization of fiber-Bragg gratings through combined use of low-coherence interferometry and a layer-peeling algorithm

2006 ◽  
Vol 45 (4) ◽  
pp. 728 ◽  
Author(s):  
Xavier Chapeleau ◽  
Dominique Leduc ◽  
Cyril Lupi ◽  
Francisco López-Gejo ◽  
Marc Douay ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Low Coherence ◽  
Low Coherence Interferometry ◽  
Combined Use ◽  
Layer Peeling ◽  
Local Characterization

Optical low-coherence reflectometry (OLCR) characterization of efficient Bragg gratings in optical fiber

1993 ◽  
Author(s):  
Hans G. Limberger ◽  
Pierre-Yves Fonjallaz ◽  
Patrick Lambelet ◽  
Rene-Paul Salathe ◽  
Christophe Zimmer ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Bragg Gratings ◽  
Low Coherence ◽  
Optical Low Coherence Reflectometry

scholarly journals The Sensitivity Improvement Characterization of Distributed Strain Sensors Due to Weak Fiber Bragg Gratings

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6431
Author(s):  
Кonstantin V. Stepanov ◽  
Andrey A. Zhirnov ◽  
Аnton O. Chernutsky ◽  
Kirill I. Koshelev ◽  
Alexey B. Pnev ◽  
...  
Keyword(s):  
Rayleigh Scattering ◽  
Signal To Noise Ratio ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Optical Time Domain Reflectometer ◽  
Sensitivity Improvement ◽  
Phase Sensitive ◽  
Optical Time ◽  
Electrical Components

Weak fiber Bragg gratings (WFBGs) in a phase-sensitive optical time-domain reflectometer (phi-OTDR) sensor offer opportunities to significantly improve the signal-to-noise ratio (SNR) and sensitivity of the device. Here, we demonstrate the process of the signal and noise components’ formation in the device reflectograms for a Rayleigh scattering phi-OTDR and a WFBG-based OTDR. We theoretically calculated the increase in SNR when using the same optical and electrical components under the same external impacts for both setups. The obtained values are confirmed on experimental installations, demonstrating an improvement in the SNR by about 19 dB at frequencies of 20, 100, and 400 Hz. In this way, the minimum recorded impact (at the threshold SNR = 10) can be reduced from 100 nm per 20 m of fiber to less than 5 nm per 20 m of fiber sensor.

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