Prof. Xuping Zhang Profile

Prof. Xuping Zhang

at Nanjing Univ

SPIE Involvement:

Conference Chair | Author | Editor

Publications (59)

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

Proc. SPIE. 11547, Optoelectronic Devices and Integration IX

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

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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

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

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

Proc. SPIE. 11436, 2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

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

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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

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

Proc. SPIE. 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019)

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

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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

Proc. SPIE. 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018)

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

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Proceedings Article | 5 November 2018 Paper

Implementing a temperature-resistant fiber hydrophone sensor using FBG

Mohammadmasoud Zabihi, Xuping Zhang

Proc. SPIE. 10814, Optoelectronic Devices and Integration VII

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

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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

Proc. SPIE. 10814, Optoelectronic Devices and Integration VII

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

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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

Proc. SPIE. 10618, 2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications

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

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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

Proc. SPIE. 10618, 2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications

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

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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

Proc. SPIE. 10618, 2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications

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

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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

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

Proc. SPIE. 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI

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

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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

Proc. SPIE. 10019, Optoelectronic Devices and Integration VI

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

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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

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

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

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

Proc. SPIE. 9697, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX

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

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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

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

Proc. SPIE. 9679, AOPC 2015: Optical Fiber Sensors and Applications

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

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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

Proc. SPIE. 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

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

Proc. SPIE. 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

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

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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

Proc. SPIE. 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

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

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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

Proc. SPIE. 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors

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

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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

Proc. SPIE. 9274, Advanced Sensor Systems and Applications VI

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

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