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Nature Communications, ISSN 2041-1723, 12/2018, Volume 9, Issue 1, pp. 2991 - 9
Optical fibres constitute an exceptional sensing platform. However, standard fibres present an inherent sensing challenge: they confine light to an inner core.... 
PHOTONIC CRYSTAL FIBERS | WAVES | OPTICAL-FIBER | NOISE-REDUCTION | MULTIDISCIPLINARY SCIENCES | STANDARD FIBERS | CORE FIBERS | STIMULATED BRILLOUIN-SCATTERING | REFRACTIVE-INDEX | SENSOR | SPATIAL-RESOLUTION | Optical fibers | Ethanol | Backscattering | Time domain analysis | Coated fibers | Acoustic coupling | Acoustics | Cladding | Fibers | Forward scattering | Acoustic mapping | Reflectometry | Acoustic waves
Journal Article
by Wang, Z.N and Li, J and Fan, M.Q and Zhang, L and Peng, F and Wu, H and Zeng, J.J and Zhou, Y and Rao, Y.J
Optics Letters, ISSN 0146-9592, 08/2014, Volume 39, Issue 15, pp. 4313 - 4316
We propose a phase-sensitive optical time-domain reflectometry (Phi-OTDR) scheme with counterpumping fiber Brillouin amplification (FBA). High-sensitivity... 
RAMAN AMPLIFICATION | GAIN | OPTICS | Optical fibers | Amplification | Pumps | Brillouin zone | Reflectometry | Detection | Fibers | Fiber optics
Journal Article
Journal of Lightwave Technology, ISSN 0733-8724, 12/2019, Volume 37, Issue 23, pp. 5766 - 5772
A sub-Nyquist random single-pulse sampling method based compressive sensing technique is proposed firstly to reconstruct signals under test in phase-sensitive... 
Vibrations | Compressive sensing | phase-sensitive optical time domain reflectometry | fiber optics sensors | Optical sensors | Optical modulation | Time-domain analysis | Compressed sensing | Optical pulses
Journal Article
SENSORS, ISSN 1424-8220, 04/2019, Volume 19, Issue 7, p. 1497
Distributed strain and temperature can be measured by using local Brillouin backscatter in optical fibers based on the strain and temperature dependence of the... 
CHEMISTRY, ANALYTICAL | INSTRUMENTS & INSTRUMENTATION | Distributed fiber sensor | strain and temperature sensor | signal processing | spectral analysis | Brillouin scattering | Brillouin Optical Time Domain Reflectometry | SPATIAL-RESOLUTION | fast Fourier transform | ENGINEERING, ELECTRICAL & ELECTRONIC
Journal Article
by Bai, Q and Wang, QL and Wang, D and Wang, Y and Gao, Y and Zhang, HJ and Zhang, MJ and Jin, BQ
SENSORS, ISSN 1424-8220, 04/2019, Volume 19, Issue 8, p. 1862
Journal Article
Optics Express, ISSN 1094-4087, 07/2017, Volume 25, Issue 14, pp. 16059 - 16071
A method based on coherent Rayleigh scattering distinctly evaluating temperature and strain is proposed and experimentally demonstrated for distributed optical... 
BRILLOUIN DYNAMIC GRATINGS | POLARIZATION-MAINTAINING FIBER | PERFORMANCE | FABRY-PEROT LASERS | SENSOR | RAMAN | BIREFRINGENCE | SPECTRUM | OPTICS | SCATTERING
Journal Article
Optics Communications, ISSN 0030-4018, 07/2015, Volume 346, pp. 172 - 177
We demonstrate the design and characterization of a distributed optical fiber sensing system based on Michelson interferometer of the phase sensitive optical... 
Rayleigh scattering | Optical time domain reflectometry | Fiber optics sensors | Interferometry | OTDR | SAGNAC INTERFEROMETER | INTRUSION-SENSOR SYSTEM | OPTICS | ZEHNDER INTERFEROMETER | SPATIAL-RESOLUTION | STRAIN
Journal Article
Journal of Lightwave Technology, ISSN 0733-8724, 12/2019, Volume 37, Issue 23, pp. 5899 - 5906
Single photon detector (SPD) has a maximum count rate due to its dead time, which results in that the dynamic range of photon counting optical time-domain... 
Optical fibers | Fiber testing | Optical fiber sensors | Scattering | photon counting | Dynamic range | Logic gates | optical time-domain reflectometry | Spatial resolution | gating operation | Photonics
Journal Article
Journal of Lightwave Technology, ISSN 0733-8724, 10/2019, pp. 1 - 1
A fast Brillouin optical time-domain reflectometry (BOTDR) for dynamic strain measurement is proposed and experimentally demonstrated based on the... 
Optical fibers | Brillouin optical time-domain reflectometry | Optical fiber sensors | Time-frequency analysis | dynamic strain measurement | frequency-agile technique | Scattering | spontaneous Brillouin scattering | Strain
Journal Article
Journal of Lightwave Technology, ISSN 0733-8724, 09/2019, Volume 37, Issue 18, pp. 4888 - 4895
Journal Article
Journal of Lightwave Technology, ISSN 0733-8724, 09/2015, Volume 33, Issue 17, pp. 3660 - 3671
The paper develops a statistical model for the signals received in phase-sensitive optical time domain reflectometry (OTDR) probed by highly coherent sources.... 
Optical fibers | optical fiber devices | Optical fiber sensors | reflectometry | Optical scattering | Backscatter | Reflectometry | Optical fiber devices | Rayleigh scattering | STATISTICS | PERFORMANCE | RESOLUTION | TELECOMMUNICATIONS | time domain analysis | ENGINEERING, ELECTRICAL & ELECTRONIC | REDUCTION | OTDR | optical fiber sensors | RAYLEIGH BACKSCATTER | SILICA | OPTICS | STRAIN | SCATTERING
Journal Article
Optics Communications, ISSN 0030-4018, 09/2017, Volume 398, pp. 95 - 100
For the first time, to the best of our knowledge, a direct detection Brillouin optical time-domain reflectometry (BOTDR) is demonstrated for fast distributed... 
Brillouin optical time-domain reflectometry | Up-conversion technique | Fabry-Perot interferometer | WIND | SYSTEM | UP-CONVERSION | TEMPERATURE | SENSOR | DISTRIBUTED STRAIN | OPTICS | DOPPLER LIDAR | SCATTERING | Methods | Detectors
Journal Article
by Zhang, XP and Cao, L and Shan, YY and Li, M and Wang, F and Wang, Q and Zhang, YX and Chen, MM
OPTICAL ENGINEERING, ISSN 0091-3286, 05/2019, Volume 58, Issue 5, p. 1
Phase-sensitive optical time-domain reflectometry (Phi-OTDR) has been widely used to interrogate multipoint vibration events in the health monitoring of... 
SYSTEM | phase-sensitive optical time-domain reflectometry | signal-to-noise ratio | ENHANCEMENT | matched filtering | OPTICS | multiscale
Journal Article
Applied optics, ISSN 1559-128X, 11/2019, Volume 58, Issue 31, p. 8423
A phase-sensitive optical time-domain reflectometry with a detection distance of 10 km is used in this paper to recognize and to detect in real time events... 
Optical fibers | Intrusion | False alarms | Time domain analysis | Pattern recognition | Security | Real time | Vibration monitoring | Algorithms | Monitoring systems | Signal processing | Reflectometry | Optical communication
Journal Article
Journal of Lightwave Technology, ISSN 0733-8724, 08/2015, Volume 33, Issue 15, pp. 3156 - 3162
Phase-sensitive optical time domain reflectometry (Φ-OTDR) is easy to be interfered by ambient noises, and the nonlinear coherent addition of different... 
Optical fibers | Signal separation | detection | Filter banks | Φ-OTDR | Sensors | Noise measurement | extraction | distributed optical fiber sensing | Signal to noise ratio | Testing | Extraction | Detection | Distributed optical fiber sensing | SYSTEM | signal separation | INTRUSION SENSOR | OPTICS | TELECOMMUNICATIONS | Phi-OTDR | ENGINEERING, ELECTRICAL & ELECTRONIC
Journal Article
Optics Communications, ISSN 0030-4018, 12/2016, Volume 381, pp. 37 - 42
A direct-detection Brillouin optical time-domain reflectometry (BOTDR) using an up-conversion photon-counting detector and an all-fiber structure Fabry–Perot... 
Brillouin optical time-domain reflectometry | Fabry–Perot interferometer | Up-conversion | Single-photon detector | Fabry-Perot interferometer | TEMPERATURE | FABRY-PEROT-INTERFEROMETER | OPTICS | STRAIN | DOPPLER LIDAR | SCATTERING | Noise control | Analysis | Detectors
Journal Article
IEEE Sensors Journal, ISSN 1530-437X, 10/2017, Volume 17, Issue 20, pp. 6622 - 6626
Linear and quadratic Time-Frequency (T-F) transforms are proposed for the signal processing of the Brillouin optical time-domain reflectometry, to improve the... 
Temperature measurement | Optical fibers | Time-frequency analysis | Optical fiber sensors | Fiber-optics sensors | Scattering | Transforms | backscattering | Signal resolution | Brillouin | time-frequency analysis | INSTRUMENTS & INSTRUMENTATION | PHYSICS, APPLIED | REPRESENTATIONS | FOURIER-TRANSFORM | SIGNALS | SCATTERING | KERNELS | ENGINEERING, ELECTRICAL & ELECTRONIC
Journal Article
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