Prof. Xuping Zhang Profile

Prof. Xuping Zhang

at Nanjing Univ

SPIE Involvement:

Conference Chair | Conference Program Committee | Symposium Chair | Author | Editor

Publications (68)

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

Read Abstract +

Proceedings Article | 17 May 2019

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

Read Abstract +

Proceedings Article | 14 February 2019

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

Read Abstract +

SPIE Conference Volume | 12 November 2018

Optoelectronic Devices and Integration VII

Proceedings Article | 5 November 2018

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

Read Abstract +

Proceedings Article | 5 November 2018

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

Read Abstract +

SPIE Conference Volume | 24 January 2018

2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications

Proceedings Article | 10 January 2018

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

Read Abstract +

Proceedings Article | 10 January 2018

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

Read Abstract +

Proceedings Article | 10 January 2018

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 17 February 2017

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

Read Abstract +

SPIE Conference Volume | 25 January 2017

Optoelectronic Devices and Integration VI

Proceedings Article | 31 October 2016

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 8 March 2016

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 8 October 2015

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

Read Abstract +

SPIE Conference Volume | 13 August 2015

2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

Proceedings Article | 10 August 2015

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

Read Abstract +

Proceedings Article | 10 August 2015

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

Read Abstract +

Proceedings Article | 10 August 2015

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

Read Abstract +

Proceedings Article | 3 December 2014

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

Read Abstract +

SPIE Conference Volume | 24 November 2014

Optoelectronic Devices and Integration V

Proceedings Article | 17 November 2014

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

Read Abstract +

Proceedings Article | 24 October 2014

Compact microfluidic sensing by introducing effective phase shift in fiber Bragg grating

Minghui Tang, Guanghui Wang, Ho-Pui Ho, Xuping Zhang