Prof. Xuping Zhang Profile

Prof. Xuping Zhang

at Nanjing Univ

SPIE Involvement:

Conference Chair | Editor | Author

Publications (63)

Proceedings Article | 24 November 2023 Paper

Improving the spatial resolution and signal-to-noise ratio of BOTDR using double-pulse coding

Xiao Zhou, Chengyu Yang, Feng Wang, Yixin Zhang, Xuping Zhang

Proceedings Volume 12935, 1293550 (2023) https://doi.org/10.1117/12.3008152

KEYWORDS: Spatial resolution, Signal to noise ratio, Pulse signals, Optical fibers, Signal processing, Signal detection, Sensing systems

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Proceedings Article | 24 November 2023 Paper

Wavelength multiplexed Ф-OTDR based on a cross-arranged dual-wavelength UWFBG array

Rui Hong, Yu Yong, Ruifeng Tian, Feng Wang, Yixin Zhang, Xuping Zhang

Proceedings Volume 12935, 1293521 (2023) https://doi.org/10.1117/12.3007425

KEYWORDS: Spatial resolution, Multiplexing, Signal to noise ratio, Vibration, Signal detection, Fiber Bragg gratings, Pulse signals, Demodulation, Bragg cells, Wavelength division multiplexing

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Proceedings Article | 29 December 2022 Presentation

Research on fault identification technology of sound barrier based on distributed optical fiber sensing (Conference Presentation)

Yuanyuan Yao, Ningmu Zou, Chi Zhang, Qianyi Gao, Yiming Wan, Ruofan Wang, Shisong Zhao, Feng Wang, Yixin Zhang, Xuping Zhang

Proceedings Volume 12314, 123140H (2022) https://doi.org/10.1117/12.2643963

KEYWORDS: Feature extraction, Acoustics, Linear filtering, Fiber optics sensors, Denoising, Backscatter, Optical sensing, Optical fibers, Reflectometry

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Proceedings Article | 8 January 2021 Paper

Simultaneous temperature and vibration sensing based on hybrid BOTDR and Φ-OTDR

Xiao Zhou, Haitao Li, Feng Wang, Shiyi Li, Jingzeng Li, Hao Li, Xinyu Yuan, Yixin Zhang, Xuping Zhang

Proceedings Volume 11607, 1160708 (2021) https://doi.org/10.1117/12.2584955

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Proceedings Article | 10 October 2020 Paper

Classification of interference-fading suppressed [phi]-OTDR signal using optimal peak-seeking and machine learning

Yixin Zhang, Tong Zhou, Zhewen Ding, Xuping Zhang, Feng Wang, Ningmu Zou

Proceedings Volume 11547, 1154708 (2020) https://doi.org/10.1117/12.2576029

KEYWORDS: Machine learning, Data modeling, Heterodyning, Backscatter, Sensing systems, Structured optical fibers, Detection and tracking algorithms

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SPIE Journal Paper | 2 April 2020

Investigation on the improvement of Brillouin optical time-domain reflectometer with Golay pulse codes in radiation environment

Mi Li, Yizhuo Zhang, Zhang Chen, You Guo, Xinyu Zhang, Xuping Zhang

OE, Vol. 59, Issue 04, 046102, (April 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.4.046102

KEYWORDS: Reflectometry, Signal to noise ratio, Optical engineering, Radiation effects, Aerospace engineering, Optical fibers, Signal attenuation, Lithium, Signal detection, Optical sensing

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SPIE Journal Paper | 1 April 2020

Performance enhancement method for phase-sensitive optical time-domain reflectometer system based on suppression of fading induced false alarms

Xuping Zhang, Qing Wang, Fei Xiong, Dao Zhang, Mengmeng Chen, Xiaohong Chen, Zhewen Ding, Yuhao Zhang, Tong Zhou, Feng Wang, Yixin Zhang

OE, Vol. 59, Issue 04, 046101, (April 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.4.046101

KEYWORDS: Signal to noise ratio, Demodulation, Optical engineering, Reflectometry, Fiber optics sensors, Interference (communication), Signal processing, Computer simulations, Data acquisition, Spatial resolution

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Proceedings Article | 12 March 2020 Paper

Performance enhancement for phase-sensitive OTDR based on multi-spatial resolution analysis

Yusheng Chen, Yuanyuan Shan, Lu Cao, Wei Yang, Feng Wang, Yixin Zhang, Xuping Zhang

Proceedings Volume 11436, 1143603 (2020) https://doi.org/10.1117/12.2539818

KEYWORDS: Signal to noise ratio, Electronic filtering, Scattering, Optical filters, Sensing systems, Light scattering, Signal processing

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SPIE Journal Paper | 31 May 2019

Performance optimization for a phase-sensitive optical time-domain reflectometry based on multiscale matched filtering

Xuping Zhang, Lu Cao, Yuanyuan Shan, Mi Li, Feng Wang, Qing Wang, Yixin Zhang, Mengmeng Chen

OE, Vol. 58, Issue 05, 056114, (May 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.5.056114

KEYWORDS: Signal to noise ratio, Filtering (signal processing), Electronic filtering, Digital signal processing, Signal processing, Reflectometry, Optical filters, Interference (communication), Wavelets, Denoising

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Proceedings Article | 17 May 2019 Paper

Investigation on the radiation recovery effect on BOTDR system

Yizhuo Zhang, Mi Li, Zhang Chen, Xuping Zhang

Proceedings Volume 11170, 111703I (2019) https://doi.org/10.1117/12.2533918

KEYWORDS: Radiation effects, Signal attenuation, Optical fibers, Optical sensing, Gamma radiation, Sensing systems, Reflectometry, Aerospace engineering, Environmental sensing, Color centers

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Proceedings Article | 14 February 2019 Paper

High performance interrogation by a composite-double-probe-pulse for ultra-weak FBG array

Yu Liu, Feng Wang, Xuping Zhang, Yixin Zhang, Weihong Xu, Lin Zhang

Proceedings Volume 11048, 110483U (2019) https://doi.org/10.1117/12.2519615

KEYWORDS: Polarization, Composites, Fiber Bragg gratings, Signal detection, Demodulation, Signal attenuation, Communication engineering, Reflectometry, Interferometers, Scattering

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Proceedings Article | 5 November 2018 Paper

Nanoparticles manipulation on plasmonic metasurface for determination of antibody in lab-on-a-chip devices

Wenhao Xu, Min Jiang, Feng Wang, Guanghui Wang, Xuping Zhang

Proceedings Volume 10814, 108140B (2018) https://doi.org/10.1117/12.2500255

KEYWORDS: Particles, Microfluidics, Nanoparticles, Polarization, Lab on a chip, Gold, Fluorescence spectroscopy, Plasmonics, Luminescence, Neon

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Proceedings Article | 5 November 2018 Paper

Implementing a temperature-resistant fiber hydrophone sensor using FBG

Mohammadmasoud Zabihi, Xuping Zhang

Proceedings Volume 10814, 108140Q (2018) https://doi.org/10.1117/12.2503804

KEYWORDS: Sensors, Fiber Bragg gratings, Acoustics, Fiber optics sensors, Polyurethane, Demodulation, Environmental sensing, Head, Sensor calibration, Calibration

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Proceedings Article | 10 January 2018 Paper

Measurement of multiple vibration points by using POTDR

Mengmeng Chen, Feng Wang, Yixin Zhang, Xuping Zhang

Proceedings Volume 10618, 1061803 (2018) https://doi.org/10.1117/12.2291618

KEYWORDS: Data acquisition, Data processing, Polarization, Signal detection, Spectrum analysis, Reflectometry, Spatial resolution, Fiber optics sensors, Sensors

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Proceedings Article | 10 January 2018 Paper

Precise sample preconcentration based on plasmon-assisted optical manipulation for a bead-based Raman biosensor

Min Jiang, Guanghui Wang, Xuping Zhang

Proceedings Volume 10618, 106180F (2018) https://doi.org/10.1117/12.2295661

KEYWORDS: Polarization, Particles, Raman spectroscopy, Optical manipulation, Gold, Plasmonics, Lab on a chip, Nanoparticles, Biosensors, Microfluidics

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Proceedings Article | 10 January 2018 Paper

An event recognition method for fiber distributed acoustic sensing systems based on the combination of MFCC and CNN

Fei Jiang, Honglang Li, Zhenhai Zhang, Xuping Zhang

Proceedings Volume 10618, 1061804 (2018) https://doi.org/10.1117/12.2286220

KEYWORDS: Acoustics, Sensing systems, Signal detection, Convolutional neural networks, Statistical modeling, Systems modeling, Feature extraction, Fiber optics sensors, Pattern recognition

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SPIE Journal Paper | 19 August 2017

Phase sensitive distributed vibration sensing based on ultraweak fiber Bragg grating array using double-pulse

Tao Liu, Feng Wang, Xuping Zhang, Lin Zhang, Quan Yuan, Yu Liu, Zhijun Yan

OE, Vol. 56, Issue 08, 084104, (August 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.8.084104

KEYWORDS: Reflectivity, Signal to noise ratio, Fiber Bragg gratings, Signal detection, Sensing systems, Optical engineering, Spatial resolution, Nonlinear optics, Reflectometry, Communication engineering

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Proceedings Article | 17 February 2017 Paper

Volumetric vessel reconstruction method for absolute blood flow velocity measurement in Doppler OCT images

Li Qi, Jiang Zhu, Aneeka Hancock, Cuixia Dai, Xuping Zhang, Ron Frostig, Zhongping Chen

Proceedings Volume 10053, 1005331 (2017) https://doi.org/10.1117/12.2253309

KEYWORDS: Optical coherence tomography, Blood circulation, Doppler tomography, Arteries, Laser scattering, Image segmentation, Velocity measurements, Image analysis, Functional imaging, Biology, Doppler effect, Hemodynamics, Particles

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Proceedings Article | 31 October 2016 Paper

A distributed optical fiber sensing system for dynamic strain measurement based on artificial reflector

Zhenhong Sun, Yuanyuan Shan, Yanting Li, Yixin Zhang, Xuping Zhang

Proceedings Volume 10019, 100190R (2016) https://doi.org/10.1117/12.2245811

KEYWORDS: Optical fibers, Sensing systems, Reflectors, Aluminum, Ferroelectric materials, Connectors, Amplitude modulation, Avalanche photodetectors, Linear filtering, Signal to noise ratio

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Phase sensitive optical time domain reflectometry (Φ-OTDR) has been widely used in many applications for its distributed sensing ability on weak disturbance all along the sensing fiber. However, traditional Φ-OTDR cannot make quantitative measurement on the external disturbance due to the randomly distributed position and reflectivity of scatters within the optical fiber. Recently, some methods have been proposed to realize quantitative measurement of dynamic strain. In these literatures, the fiber with or without FBGs in practice was easily damaged and with difficulty of maintenance. PZT is employed to generate strain event in the fiber. There is a large gap compared with the real detecting environment, which will not reveal the full performance of the sensing system. In this paper, a distributed optical fiber sensing (DOFS) system for dynamic strain measurement based on artificial reflector is proposed and demonstrated experimentally. The fiber under test (FUT) is composed by four 20-meter long single mode optical fiber patch cords (OFPCs), which are cascaded with ferrule contactor/physical contact (FC/PC) connectors via fiber flanges. The fiber facet of FC/PC connector forms an artificial reflector. When the interval between the two reflectors is changed, the phase of the interference signal will also be changed. A symmetric 3×3 coupler with table-look-up scheme is introduced to discriminate the phase change through interference intensity. In our experiment, the center 10m section of the second OFPC is attached to the bottom of an aluminum alloy plate. An ordinary loudspeaker box was located on the top of the aluminum alloy plate. The dynamic strain generated by the loudspeaker box is transmitted from the aluminum alloy plate to the OFPC. Experimental results show that the proposed method has a good frequency response characteristic up to 3.2 kHz and a linear intensity response of R2=0.9986 while the optical probe pulse width and repetition rate were 100ns and 10 kHz respectively. Meanwhile, triangle and cosine amplitude-modulated (AM) dynamic strain applied on the fiber are successfully discriminated. The artificial reflectors based on FC/PCs were easily assembled and maintained, and the method of vibration transmission closely resembled the real circumstance than PZT. Therefore, these advantages will extend the potential of this Φ-OTDR technology in structure health monitoring.

SPIE Journal Paper | 6 September 2016

Enhanced ν-optical time domain reflectometry using gigahertz sinusoidally gated InGaAs/InP single-photon avalanche detector

Xuping Zhang, Yuanlei Shi, Yuanyuan Shan, Zhenhong Sun, Weiyan Qiao, Yixin Zhang

OE, Vol. 55, Issue 09, 094101, (September 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.9.094101

KEYWORDS: Optical engineering, Spatial resolution, Sensors, Reflectometry, Single photon detectors, Time metrology, Pulsed laser operation, Single mode fibers, Quantum efficiency, Connectors

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SPIE Journal Paper | 21 July 2016

Polarization dependence of phase-sensitive optical time-domain reflectometry and its suppression method based on orthogonal-state of polarization pulse pair

Yixin Zhang, Yemian Xu, Yuanyuan Shan, Zhenhong Sun, Fan Zhu, Xuping Zhang

OE, Vol. 55, Issue 07, 074109, (July 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.7.074109

KEYWORDS: Polarization, Birefringence, Reflectometry, Sensing systems, Optical engineering, Signal to noise ratio, Sun, Fluctuations and noise, Interference (communication), Phase modulation

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SPIE Journal Paper | 9 May 2016

Enhanced Φ-OTDR system for quantitative strain measurement based on ultra-weak fiber Bragg grating array

Xuping Zhang, Zheng Guo, Yuanyuan Shan, Zhenhong Sun, Siyi Fu, Yixin Zhang

OE, Vol. 55, Issue 05, 054103, (May 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.5.054103

KEYWORDS: Spatial resolution, Ferroelectric materials, Signal detection, Fiber Bragg gratings, Sensors, Optical engineering, Reflectivity, Signal attenuation, Phase shifts, Sun

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Proceedings Article | 8 March 2016 Paper

Automatic airway wall segmentation and thickness measurement for long-range optical coherence tomography images

Li Qi, Shenghai Huang, Andrew Heidari, Cuixia Dai, Jiang Zhu, Xuping Zhang, Zhongping Chen

Proceedings Volume 9697, 96973B (2016) https://doi.org/10.1117/12.2214605

KEYWORDS: Optical coherence tomography, Image segmentation, Endoscopy, Image processing, Edge detection, Tissues, Imaging systems

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SPIE Journal Paper | 2 November 2015

Quality inspection guided laser processing of irregular shape objects by stereo vision measurement: application in badminton shuttle manufacturing

Li Qi, Shun Wang, Yixin Zhang, Yingying Sun, Xuping Zhang

OE, Vol. 54, Issue 11, 113101, (November 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.11.113101

KEYWORDS: Cameras, Laser processing, Laser cutting, Inspection, 3D modeling, Calibration, Stereo vision systems, Wavelets, 3D image processing, Image segmentation

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Proceedings Article | 8 October 2015 Paper

Investigation of the MQAM modulation schemes in downlink of space optical communication system

Mi Li, Ning Wang, Bowen Li, Xuping Zhang, Yuejiang Song, Yingjie Zhang, Guojie Tu

Proceedings Volume 9679, 967915 (2015) https://doi.org/10.1117/12.2202828

KEYWORDS: Modulation, Telecommunications, Optical communications, Quadrature amplitude modulation, Astronomical imaging, Receivers, Amplitude shift keying, Atmospheric turbulence, Sensors, Laser communications

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Proceedings Article | 10 August 2015 Paper

Development of a distributed polarization-OTDR to measure two vibrations with the same frequency

Yun Pan, Feng Wang, Xiangchuan Wang, Mingjiang Zhang, Ling Zhou, Zhenqing Sun, Xuping Zhang

Proceedings Volume 9620, 962002 (2015) https://doi.org/10.1117/12.2193409

KEYWORDS: Polarization, Rubidium, Rutherfordium, Optical fibers, Birefringence, Sensors, Scattering, Backscatter, Signal processing, Reflectometry

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Proceedings Article | 10 August 2015 Paper

Investigation on the bit error rate performance of 40Gb/s space optical communication system based on BPSK scheme

Mi Li, Bowen Li, Xuping Zhang, Yuejiang Song, Jia Liu, Guojie Tu

Proceedings Volume 9620, 96200K (2015) https://doi.org/10.1117/12.2193469

KEYWORDS: Optical communications, Telecommunications, Astronomical imaging, Data communications, Avalanche photodetectors, Lithium, Sensors, Atmospheric turbulence, Optical design, Modulation

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Proceedings Article | 10 August 2015 Paper

The performance limit of Φ-OTDR sensing system enhanced with ultra-weak fiber Bragg grating array

Lan Xia, Yixin Zhang, Fan Zhu, Chunqi Cao, Xuping Zhang

Proceedings Volume 9620, 962003 (2015) https://doi.org/10.1117/12.2192682

KEYWORDS: Signal to noise ratio, Reflectivity, Fiber Bragg gratings, Sensing systems, Signal detection, Sensors, Spatial resolution, Rayleigh scattering, Phase shifts, Reflectometry

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Proceedings Article | 3 December 2014 Paper

Location of lightning stroke on OPGW by use of distributed optical fiber sensor

Lidong Lu, Yun Liang, Binglin Li, Jinghong Guo, Hao Zhang, Xuping Zhang

Proceedings Volume 9297, 92972I (2014) https://doi.org/10.1117/12.2069005

KEYWORDS: Optical fibers, Temperature sensors, Spatial resolution, Temperature metrology, Fiber optics sensors, Optical communications, Electrodes, Reflectometry, Fiber optic communications, Telecommunications

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Proceedings Article | 17 November 2014 Paper

Health monitoring of electric power communication line using a distributed optical fiber sensor

Lidong Lu, Yun Liang, Binglin Li, Jinghong Guo, Hao Zhang, Xuping Zhang

Proceedings Volume 9274, 92740W (2014) https://doi.org/10.1117/12.2072870

KEYWORDS: Optical fibers, Optical communications, Fiber optic communications, Telecommunications, Electrodes, Fiber optics sensors, Spatial resolution, Temperature metrology, Defense technologies, Diagnostics

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