Prof. Junfeng Jiang Profile

Prof. Junfeng Jiang

at Tianjin Univ

SPIE Involvement:

Author

Publications (54)

Proceedings Article | 10 October 2020 Presentation + Paper

Pendulum-style adjustment of captured particles with fiber tweezers based on asymmetrical fiber tip for CARS system

Tong Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Yongning Zhang, Panpan Niu, Tiegen Liu

Proc. SPIE. 11554, Advanced Sensor Systems and Applications X

KEYWORDS: Optical fibers, Microscopes, Biological detection systems

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Proceedings Article | 10 October 2020 Presentation + Paper

Low detection limit refractive index sensor based on open microcavity Mach-Zehnder interferometer and fiber ring laser

Panpan Niu, Junfeng Jiang, Kun Liu, Shuang Wang, Zhe Ma, Yongning Zhang, Wenjie Chen, Tong Wang, Tiegen Liu

Proc. SPIE. 11554, Advanced Sensor Systems and Applications X

KEYWORDS: Fiber lasers, Optical microcavities, Sensors, Mach-Zehnder interferometers, Refractive index, Optical fibers, Single mode fibers, Manufacturing, Multimode fibers, Liquids

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Proceedings Article | 12 March 2020 Paper

Automatic segment assembly in shield method using multiple imaging sensors

Kaixian Dong, Shundong Yang, Shuang Wang, Junfeng Jiang, Kun Liu, Zhiyang Wu, Jie Zhou, Tiegen Liu

Proc. SPIE. 11439, 2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems

KEYWORDS: Image segmentation, Optical sensors, Image sensors, Real time image processing, Neural networks, Reliability

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Proceedings Article | 12 March 2020 Paper

An EMD-based filtering algorithm for the long period fiber grating sensing

Zhao Zhang, Kun Liu, Junfeng Jiang, Pengxiang Chang, Jinying Ma, Jiahang Zhang, Tiegen Liu

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

KEYWORDS: Refractive index, Sensing systems, Cladding, Optical filters, Data processing, Mechanical sensors, Optical fibers, Optical sensing, Modulation, Interference (communication)

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Proceedings Article | 12 March 2020 Paper

Distributed optical fiber acoustic sensing method based on dual-chirped pulses and cross-correlation analysis

Guanhua Liang, Junfeng Jiang, Kun Liu, Shuang Wang, Wenjie Chen, Zhe Ma, Zhenyang Ding, Xuezhi Zhang, Yongning Zhang, Xiaoying Liu, Gaofei Gu, Tiegen Liu

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

KEYWORDS: Fiber Bragg gratings, Demodulation, Acoustics, Optical fibers, Sensing systems, Spatial resolution, Optical sensing, Signal detection, Optical amplifiers, Ferroelectric materials

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Proceedings Article | 12 March 2020 Paper

Variational mode decomposition-based endpoint detection for distributed fiber interferometric vibration sensing systems

Pengfei Ma, Kun Liu, Junfeng Jiang, Zhenshi Sun, Liwang Zhang, Tiegen Liu

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

KEYWORDS: Interferometry, Sensing systems, Sensors, Fiber optics sensors, Mach-Zehnder interferometers, Fiber optics, Wavelets, Michelson interferometers, Bridges, Environmental sensing

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Proceedings Article | 12 March 2020 Paper

Automatic segment assembly method of shield tunneling machine based on multiple optoelectronic sensors

Zhiyang Wu, Lianhao Zhang, Shuang Wang, Suyang Guo, Junfeng Jiang, Kun Liu, Jie Zhou, Kaixian Dong, Tiegen Liu

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

KEYWORDS: Sensors, Image segmentation, Optoelectronics, Control systems, Optical sensors, Visualization, Ultrasonics, Ranging, Image sensors, Distance measurement

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Proceedings Article | 12 March 2020 Paper

The effect of metal layer microstructure on optical fiber SPR sensor: a simulation study

Pengxiang Chang, Kun Liu, Junfeng Jiang, Jinying Ma, Zhao Zhang, Tiegen Liu

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

KEYWORDS: Metals, Sensors, Optical fibers, Surface roughness, Optical properties, Fiber optics sensors, Performance modeling

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Proceedings Article | 12 March 2020 Paper

Influence of wafer materials on the response speed of extrinsic optical fiber Fabry-Perot high temperature sensors

Xun Yu, Shuang Wang, Junfeng Jiang, Kun Liu, Wen Wu, Tiegen Liu

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

KEYWORDS: Sapphire, Silicon, Fiber optics sensors, Sensors, Optical fibers, Temperature sensors, Waveguides, Fabry–Perot interferometers, Semiconducting wafers, Crystals

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Proceedings Article | 12 March 2020 Paper

A multiple events recognition scheme based on improved feature vectors for fiber optic perimeter security system

Zhenshi Sun, Kun Liu, Junfeng Jiang, Pengfei Ma, Tiegen Liu

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

KEYWORDS: Fiber optics, Neural networks, Network security, Sensing systems, Feature extraction, Detection and tracking algorithms, Signal processing, Mach-Zehnder interferometers, Fiber optics sensors, Defense and security

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Proceedings Article | 18 December 2019 Paper

Temperature-compensated refractive index sensing with high sensitivity using hybrid fiber grating

Xiaojun Fan, Junfeng Jiang, Xuezhi Zhang, Kun Liu, Shuang Wang, Tiegen Liu

Proc. SPIE. 11338, AOPC 2019: Optical Sensing and Imaging Technology

KEYWORDS: Refractive index, Sensors, Cladding, Optical fibers, Calibration, Optoelectronics, Optical sensing, Fiber Bragg gratings

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Proceedings Article | 20 November 2019 Paper

Miniaturized fiber optic Fabry-Perot pressure measuring system used for marine pressure measurement

Xiaoguang Qi, Wen Wu, Shuang Wang, Junfeng Jiang, Wenjuan Jia, Yachen Che, Renyun Li, Tiegen Liu

Proc. SPIE. 11191, Advanced Sensor Systems and Applications IX

KEYWORDS: Fabry–Perot interferometers, Fiber optics tests, Fiber optics, Sensors, Microelectromechanical systems, Demodulation, Ocean optics, Profiling

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Proceedings Article | 23 October 2018 Paper

A chirped fiber optic Bragg grating-based cutter of shield tunnel boring machine real time monitoring method

Wang Jin, Wanshan Zhu, Lei Jiang, Junfeng Jiang, Shuang Wang, Tiegen Liu

Proc. SPIE. 10821, Advanced Sensor Systems and Applications VIII

KEYWORDS: Sensors, Fiber Bragg gratings, Refractive index, Calibration, Fiber optics, Structured optical fibers, Manufacturing

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Proceedings Article | 23 October 2018 Paper

Research on wavelength demodulation method based on optical fiber Fabry-Perot tunable filter

Wanshan Zhu, Junfeng Jiang, Jin Wang, Tiegen Liu

Proc. SPIE. 10821, Advanced Sensor Systems and Applications VIII

KEYWORDS: Demodulation, Data acquisition, Fiber Bragg gratings, Tunable filters, Fabry–Perot interferometers, Sensors, Calibration

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Proceedings Article | 12 January 2018 Paper

Temporal overlap estimation based on interference spectrum in CARS microscopy

Yongning Zhang, Junfeng Jiang, Kun Liu, Can Huang, Shuang Wang, Xuezhi Zhang, Tiegen Liu

Proc. SPIE. 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology

KEYWORDS: Microscopy, CARS tomography, Femtosecond phenomena, Photonic crystal fibers, Raman spectroscopy, Optical solitons, Nonlinear optics

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Proceedings Article | 10 January 2018 Paper

A simple demodulation algorithm for optical SPR sensor based on all-phase low-pass filters

Jinying Ma, Yuzhen Cao, Kun Liu, Xiangdong Huang, Junfeng Jiang, Tao Wang, Meng Xue, Pengxiang Chang, Tiegen Liu

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

KEYWORDS: Sensors, Demodulation, Fiber optics sensors, Refractive index, Linear filtering, Sensing systems, Biomedical optics, Optical filters, Biosensing, Surface plasmons

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Proceedings Article | 10 January 2018 Paper

An MEMS optical fiber pressure sensor fabricated by Au-Au thermal-compression bonding

Xue Wang, Shuang Wang, Junfeng Jiang, Kun Liu, Mengnan Xiao, Xuejiao Chen, Daihua Zhang, Tiegen Liu

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

KEYWORDS: Sensors, Silicon, Semiconducting wafers, Microelectromechanical systems, Glasses, Optical fibers, Wafer bonding, Fabrication, Microopto electromechanical systems, Gold

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Proceedings Article | 10 January 2018 Paper

Double-sideband heterogeneous pulse modulation method for distributed acoustic sensing

Zhe Ma, Junfeng Jiang, Shuang Wang, Kun Liu, Wenjie Chen, Xuezhi Zhang, Zhenyang Ding, Tiegen Liu

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

KEYWORDS: Modulation, Modulators, Double sideband modulation, Frequency modulation, Acoustics, Electrooptic modulators, Electro optics, Sensing systems, Fiber optics sensors, Ocean optics

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Proceedings Article | 14 November 2016 Paper

A study on frequency-shifted pulse light stability control for DP-MZM in coherent-OTDR

Wenjie Chen, Junfeng Jiang, Kun Liu, Zhe Ma, Shuang Wang, Xuezhi Zhang, Zhenyang Ding, Tiegen Liu

Proc. SPIE. 10025, Advanced Sensor Systems and Applications VII

KEYWORDS: Polarization, Signal detection, Control systems, Sensors, Lab on a chip, Optical amplifiers, Modulators, Sensing systems, Modulation, Particle swarm optimization

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Proceedings Article | 14 November 2016 Paper

A gain compensation method for the long-range distributed fiber disturbance sensor

Chunyu Ma, Tiegen Liu, Kun Liu, Junfeng Jiang, Liang Pan, Tian Miao, Zhichen Li

Proc. SPIE. 10025, Advanced Sensor Systems and Applications VII

KEYWORDS: Fiber optics sensors, Time-frequency analysis, Interferometry, Sensing systems, Sensors, Signal to noise ratio, Data acquisition, Signal processing, Virtual colonoscopy, Mach-Zehnder interferometers

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Proceedings Article | 14 November 2016 Paper

Optical fiber refractometer based on tapered tilted-fiber Bragg grating

Tao Wang, Tiegen Liu, Kun Liu, Junfeng Jiang, Zhe Yu, Meng Xue

Proc. SPIE. 10025, Advanced Sensor Systems and Applications VII

KEYWORDS: Fiber Bragg gratings, Fiber optics sensors, Cladding, Optical fibers, Refractive index, Etching, HF etching, Biological and chemical sensing, Single mode fibers, Optoelectronics

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Proceedings Article | 4 November 2016 Paper

Positioning accuracy enhanced distributed disturbance fiber sensing system employing modified TDE algorithm

Liang Pan, Tiegen Liu, Kun Liu, Junfeng Jiang, Chunyu Ma

Proc. SPIE. 10025, Advanced Sensor Systems and Applications VII

KEYWORDS: Spatial resolution, Sensing systems, Resolution enhancement technologies, Environmental sensing, Fiber optics sensors, Data acquisition, Linear filtering, Error analysis, Sensors, Fourier transforms

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Proceedings Article | 10 August 2015 Paper

Calibration auto-correction method in Raman distributed temperature sensing system using fiber coil configuration

Liang Pan, Tiegen Liu, Junfeng Jiang, Kun Liu, Qinnan Chen, Chunyu Ma

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

KEYWORDS: Calibration, Raman spectroscopy, Raman scattering, Light scattering, Scattering, Data acquisition, Sensing systems, Avalanche photodetectors, Temperature metrology, Spatial resolution

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Proceedings Article | 10 August 2015 Paper

A positioning algorithm for two-wavelength dual Mach-Zehnder interferometry vibration sensing system

Chunyu Ma, Tiegen Liu, Kun Liu, Junfeng Jiang, Qinnan Chen, Liang Pan, Tianjiao Chai, Chang He

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

KEYWORDS: Sensing systems, Error analysis, Signal detection, Signal to noise ratio, Backscatter, Data acquisition, Interferometry, Interference (communication), Interferometers, Polarization

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Proceedings Article | 10 August 2015 Paper

Rebar corrosion monitoring in concrete structure under salt water enviroment using fiber Bragg grating

Yuheng Pan, Tiegen Liu, Junfeng Jiang, Kun Liu, Shuang Wang, Pan He, Jinlin Yan

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

KEYWORDS: Corrosion, Fiber Bragg gratings, Sensors, Fiber optics sensors, Transmission electron microscopy, Optical fibers, Iron, Photography, Fiber optics, Optoelectronics

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Proceedings Article | 10 August 2015 Paper

On-line air-tightness and insertion loss simultaneous detection method of high air-tightness fiber optic penetration connector

Jingchuan Zhang, Xiaoning Yang, Jing Wang, Junfeng Jiang

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

KEYWORDS: Connectors, Fiber optics, Optical fibers, Environmental sensing, Fiber optics tests, Helium, Spectroscopy, Sensors, Fiber optic communications, Protactinium

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Proceedings Article | 13 March 2015 Paper

High spatial resolution distributed optical fiber magnetic field sensor based on magnetostriction by optical frequency-domain reflectometry

Yang Du, Tiegen Liu, Zhenyang Ding, Kun Liu, Bowen Feng, Junfeng Jiang

Proc. SPIE. 9369, Photonic Instrumentation Engineering II

KEYWORDS: Magnetism, Magnetic sensors, Magnetostrictive materials, Sensors, Spatial resolution, Optical fibers, Single mode fibers, Thin films, Reflectometry, Backscatter

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Proceedings Article | 17 November 2014 Paper

The effect of near-infrared laser beam on the surface modification of metal complex based on 3D laser scanning system

Mali Zhao, Tiegen Liu, Junfeng Jiang, Meng Wang

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

KEYWORDS: Copper, Metals, Laser irradiation, Chromium, Pulsed laser operation, Laser applications, Laser scanners, 3D scanning, Laser systems engineering, Chemical analysis

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Proceedings Article | 17 November 2014 Paper

Temperature and pressure measurement based on tunable diode laser absorption spectroscopy with gas absorption linewidth detection

Yunxia Meng, Tiegen Liu, Kun Liu, Junfeng Jiang, Tao Wang, Ranran Wang

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

KEYWORDS: Absorption, Temperature metrology, Carbon monoxide, Absorption spectroscopy, Tunable diode lasers, Modulation, Gases, Signal detection, Semiconductor lasers, Analytical research

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Proceedings Article | 11 November 2014 Paper

Micro-bubble-based wavelength division multiplex optical fluidic sensing

Xuezhi Zhang, Tiegen Liu, Junfeng Jiang, Kun Liu, Zhe Yu, Wenjie Chen, Wenhui Liu

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

KEYWORDS: Resonators, Waveguides, Sensors, Wavelength division multiplexing, Microfluidics, Directional couplers, Microresonators, Biosensing, Optical sensing, Refractive index

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Proceedings Article | 11 November 2014 Paper

High Q silica microbubble resonators fabricated by heating a pressurized glass capillary

Zhe Yu, Tiegen Liu, Junfeng Jiang, Kun Liu, Wenjie Chen, Xuezhi Zhang, Xujun Lin, Wenhui Liu

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

KEYWORDS: Resonators, Refractive index, Silica, Sensors, Nitrogen, Bioalcohols, Scanning electron microscopy, Fiber lasers, Microfluidics, Tunable diode lasers

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Proceedings Article | 11 November 2014 Paper

Long-range high spatial resolution optical frequency-domain reflectometry based on optimized deskew filter method

Zhenyang Ding, Yang Du, Tiegen Liu, X. Steve Yao, Bowen Feng, Kun Liu, Junfeng Jiang

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

KEYWORDS: Spatial resolution, Interferometers, Nonlinear optics, Optical filters, Nonlinear filtering, Reflectometry, Connectors, Electronic filtering, Data acquisition, Optical fibers

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Proceedings Article | 11 November 2014 Paper

A positioning algorithm based on super-resolution time delay estimation in dual Mach-Zehnder interferometry disturbance sensor

Qinnan Chen, Tiegen Liu, Kun Liu, Junfeng Jiang, Zhenyang Ding, Liang Pan, Chunyu Ma, Tianjiao Chai, Chang He

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

KEYWORDS: Correlation function, Super resolution, Sensors, Interferometry, Signal to noise ratio, Fourier transforms, Data acquisition, Zoom lenses, Signal detection, Optoelectronics

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Proceedings Article | 20 December 2013 Paper

Ultraprecise measurement of low-coherence interferometry spectrum

Xuezhi Zhang, Tiegen Liu, Junfeng Jiang, Kun Liu

Proc. SPIE. 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

KEYWORDS: Interferometry, CCD cameras, Demodulation, Sensors, Lithium niobate, Charge-coupled devices, Fourier transforms, Refractive index, Solids, Optoelectronics

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Proceedings Article | 20 December 2013 Paper

Improving demodulation accuracy of low-coherence interferometer against spatial-frequency nonlinearity

Shuang Wang, Tiegen Liu, Junfeng Jiang, Kun Liu, Jinde Yin, Fan Wu, Bofu Zhao, Lei Xue, Yunqiao Mei, Zhenhai Wu

Proc. SPIE. 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

KEYWORDS: Demodulation, Birefringence, Interferometers, Charge-coupled devices, Optical fibers, Sensing systems, Light sources, Sensors, Light emitting diodes, Fourier transforms

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Proceedings Article | 20 December 2013 Paper

Development of optical fiber sensing instrument for aviation and aerospace application

Junfeng Jiang, Tiegen Liu, Kun Liu, Shuang Wang, Jinde Yin, Bofu Zhao, Jingchuang Zhang, Luyao Song, Peng Zhao, Fan Wu, Xuezhi Zhang

Proc. SPIE. 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

KEYWORDS: Sensors, Optical fibers, Fiber Bragg gratings, Acoustics, Temperature metrology, Aerospace engineering, Demodulation, Optical sensing, Environmental sensing, Temperature sensors

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Proceedings Article | 20 December 2013 Paper

Investigation of temperature characteristic of MEMS-based optical fiber pressure sensor

Jinde Yin, Tiegen Liu, Junfeng Jiang, Kun Liu, Shuang Wang, Bofu Zhao, Lei Xue, Yunqiao Mei, Yi Pu, Jishou Yin, Zunqi Qin, Shengliang Zou

Proc. SPIE. 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

KEYWORDS: Sensors, Silicon, Temperature metrology, Fiber Bragg gratings, Glasses, Optical fibers, Mathematical modeling, Microelectromechanical systems, Semiconducting wafers, Temperature sensors

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Proceedings Article | 7 November 2012 Paper

Reducing location error and processing time of dual Mach-Zehnder interferometric fiber perturbation sensor using zero-crossing analysis

Xiaoping Zhang, Tiegen Liu, Kun Liu, Junfeng Jiang, Zhenyang Ding, Qinnan Chen

Proc. SPIE. 8421, OFS2012 22nd International Conference on Optical Fiber Sensors

KEYWORDS: Error analysis, Signal processing, Fiber optics sensors, Sensors, Interferometry, Detection and tracking algorithms, Data processing, Light, Optical sensing, Optical fibers

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Proceedings Article | 7 November 2012 Paper

A high-speed and high-precision phase-shift demodulation algorithm for optical fiber sensing system based on low-coherence interference

Shaohua Wang, Junfeng Jiang, Tiegen Liu, Kun Liu, Jinde Yin, Xiange Meng, Shuang Wang, Zunqi Qin, Yimo Zhang

Proc. SPIE. 8421, OFS2012 22nd International Conference on Optical Fiber Sensors

KEYWORDS: Demodulation, Calibration, Fringe analysis, Optical fibers, Visibility, Charge-coupled devices, Sensing systems, Sensors, Error analysis, Interferometry

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SPIE Journal Paper | 14 March 2012

Investigation of peak wavelength detection of fiber Bragg grating with sparse spectral data

Junfeng Jiang, Tiegen Liu, Kun Liu, Yimo Zhang

OE Vol. 51 Issue 03

KEYWORDS: Fiber Bragg gratings, Signal to noise ratio, Spectral resolution, Detection and tracking algorithms, Spectroscopy, Indium gallium arsenide, Sensors, Solids, Data acquisition, Reflectivity

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Proceedings Article | 29 April 2010 Paper

An investigation of real-time high-speed multichannel fiber Bragg grating monitoring system

Tiegen Liu, Tielong Xu, Lei Li, Junfeng Jiang, Kun Liu, Jin Han, Meng He

Proc. SPIE. 7682, Photonic Microdevices/Microstructures for Sensing II

KEYWORDS: Fiber Bragg gratings, Dense wavelength division multiplexing, Demodulation, Optical filters, Sensors, Temperature metrology, Edge detection, Optical fibers, Photodetectors, Aluminum

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Proceedings Article | 28 April 2010 Paper

Gas detection techniques with fiber optical spectrum absorption at near-IR wavelength

Tiegen Liu, Kun Liu, Junfeng Jiang, Gangding Peng, Yan Wang, Dagong Jia, Hongxia Zhang, Wencai Jing, Yimo Zhang

Proc. SPIE. 7682, Photonic Microdevices/Microstructures for Sensing II

KEYWORDS: Absorption, Modulation, Fiber Bragg gratings, Signal detection, Signal attenuation, Optical gas detection, Fiber optics, Optical amplifiers, Sensors, Pollution

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Proceedings Article | 20 February 2010 Paper

Multiband swept laser source for frequency domain optical coherence tomography

Junfeng Jiang, Rongqing Hui

Proc. SPIE. 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV

KEYWORDS: Optical coherence tomography, Laser sources, Calibration, Spatial resolution, Wavelength division multiplexing, Light sources, Fiber lasers, Fourier transforms, Signal detection, Optical filters

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Proceedings Article | 24 January 2008 Paper

Scanned Talbot interferometer based on fiber translation for changing written Bragg wavelength

C. Li, Y. M. Zhang, T. G. Liu, J. F. Jiang, Z. Wan, M. Li, Y. Wang

Proc. SPIE. 6829, Advanced Materials and Devices for Sensing and Imaging III

KEYWORDS: Mirrors, Interferometers, Diffraction, Diffraction gratings, Ultraviolet radiation, Space mirrors, Fiber Bragg gratings, Light sources, Phase interferometry, Beam splitters

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Proceedings Article | 17 January 2008 Paper

A 3-D model for analyzing thermal transient effects in fiber gyro coils

Maochun Li, Tiegen Liu, Youwei Zhou, Junfeng Jiang, Lili Hou, Jiajia Wang, X. Steve Yao

Proc. SPIE. 6830, Advanced Sensor Systems and Applications III

KEYWORDS: 3D modeling, Thermal effects, Thermal modeling, Temperature metrology, Fiber optic gyroscopes, Gyroscopes, Finite element methods, Instrument modeling, Error analysis

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Proceedings Article | 28 November 2007 Paper

A novel eyelid detection method for iris segmentation

Yunxin Wang, Tiegen Liu, Junfeng Jiang

Proc. SPIE. 6833, Electronic Imaging and Multimedia Technology V

KEYWORDS: Iris recognition, Image segmentation, Detection and tracking algorithms, Image filtering, Eye models, Databases, Edge detection, Sclera, Network security, Biometrics

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Proceedings Article | 20 January 2006 Paper

Modeling and design of a parallel demodulation system used for EFPI and FBG sensor

Junfeng Jiang, Tiegen Liu, Yimo Zhang, Lina Liu, Yunxin Wang, Ying Zha, Fan Zhang, Pin Long

Proc. SPIE. 6027, ICO20: Optical Information Processing

KEYWORDS: Fiber Bragg gratings, Demodulation, Sensors, Fourier transforms, Temperature metrology, Light sources, Mirrors, Spectroscopy, Error analysis, Computer programming

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Proceedings Article | 28 February 2005 Paper

The experimental evaluation of FBG sensors for strain measurement of prestressed steel strand

Enbang Li, Jiangtao Xi, Joe Chicharo, Tiegen Liu, Xin Li, Junfeng Jiang, Lina Li, Yunxin Wang, Yimo Zhang

Proc. SPIE. 5649, Smart Structures, Devices, and Systems II

KEYWORDS: Fiber Bragg gratings, Sensors, Sensing systems, Refractive index, Ferroelectric materials, Epoxies, Lithium, Smart structures, Calibration, Superluminescent sources

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Proceedings Article | 7 February 2005 Paper

Design of the experimental system of digital off-axis holography and analysis of zero-order image

Qieni Lü, Baozhen Ge, Junfeng Jiang, Yimo Zhang

Proc. SPIE. 5636, Holography, Diffractive Optics, and Applications II

KEYWORDS: Digital holography, Holograms, Holography, 3D image reconstruction, Diffraction, Charge-coupled devices, Digital imaging, Mirrors, Fourier transforms, Optical design

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Proceedings Article | 20 January 2005 Paper

Parallel demodulation method for EFPI and FBG sensors

Yimo Zhang, Junfeng Jiang, Tiegen Liu, Lina Liu, Yunxin Wang, Pin Long

Proc. SPIE. 5633, Advanced Materials and Devices for Sensing and Imaging II

KEYWORDS: Fiber Bragg gratings, Sensors, Demodulation, Fourier transforms, Interferometers, Michelson interferometers, Mirrors, Light, Light sources, Fiber optics sensors

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Proceedings Article | 16 November 2004 Paper

Demodulation and multiplexing of optical fiber EFPI sensors

Junfeng Jiang, Tiegen Liu, Yimo Zhang, Lina Liu, Yunxin Wang, Pin Long

Proc. SPIE. 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers

KEYWORDS: Sensors, Multiplexing, Interferometers, Demodulation, Optical fibers, Fabry–Perot interferometers, Reflectivity, Fabry–Perot interferometry, Light sources, Algorithm development

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Proceedings Article | 15 December 2003 Paper

Data fusion in multiparameter measurement of optical fiber sensors system

Junfeng Jiang, Tiegen Liu, Yimo Zhang, Jie Sun, Chuan Li, Sheng Ding

Proc. SPIE. 5260, Applications of Photonic Technology 6

KEYWORDS: Fiber Bragg gratings, Demodulation, Fiber optics sensors, Sensors, Fourier transforms, Temperature metrology, Data fusion, Michelson interferometers, Data processing, Mirrors

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Proceedings Article | 20 September 2002 Paper

Method of multi-white-light-beam interfering and its application in fusion-sensitve measurement of distributed optical fiber

Jie Sun, Tiegen Liu, Yimo Zhang, Junfeng Jiang, Sheng Ding

Proc. SPIE. 4927, Optical Design and Testing

KEYWORDS: Modulation, Optical testing, Fiber optics sensors, Optical fibers, Sensors, Phase measurement, Light, Optical sensors, Superposition, Data processing

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Proceedings Article | 9 September 2002 Paper

Data fusion in distributed optical fiber strain and temperature sensors for pipeline

Junfeng Jiang, Yimo Zhang, Tiegen Liu, Jie Sun, Sheng Ding

Proc. SPIE. 4920, Advanced Sensor Systems and Applications

KEYWORDS: Sensors, Fabry–Perot interferometers, Fiber optics sensors, Optical fibers, Data fusion, Reflectivity, Temperature metrology, Sensing systems, Fiber optics, Temperature sensors

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Showing 5 of 54 publications

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