Prof. Xiaoyi Bao Profile

Prof. Xiaoyi Bao

Professor at Univ of Ottawa

SPIE Involvement:

Author | Editor

Publications (141)

SPIE Journal Paper | 11 March 2024 Open Access

Unveiling optical rogue wave behavior with temporally localized structures in Brillouin random fiber laser comb

Yuxi Pang, Qiang Ji, Shaonian Ma, Xian Zhao, Zengguang Qin, Zhaojun Liu, Ping Lu, Xiaoyi Bao, Yanping Xu

APN, Vol. 3, Issue 02, 026008, (March 2024) https://doi.org/10.1117/12.10.1117/1.APN.3.2.026008

KEYWORDS: Fiber lasers, Modulation, Mirrors, Photonics, Nonlinear optics, Signal processing, Random lasers, Ocean optics, Statistical analysis, Rayleigh scattering

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Proceedings Article | 12 April 2021 Presentation + Paper

Development of femtosecond random gratings for fiber laser and sensor applications

Ping Lu, Stephen Mihailov, Yanping Xu, Xiaoyi Bao

Proceedings Volume 11739, 117390D (2021) https://doi.org/10.1117/12.2586335

KEYWORDS: Fiber optics sensors, Femtosecond phenomena, Fiber lasers, Optical fibers, Laser applications, Temperature metrology, Sensors, Optical communications, Laser processing, Laser optics

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Proceedings Article | 26 January 2018 Presentation + Paper

The Kerr phase-interrogator: exploiting the nonlinear Kerr-effect for overcoming fundamental limitations in linear sensing approaches

Chams Baker, Liang Chen, Xiaoyi Bao

Proceedings Volume 10540, 105401H (2018) https://doi.org/10.1117/12.2290477

KEYWORDS: Sensors, Kerr effect, Nonlinear optics, Interferometry, Interferometers, Reflectometry

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Proceedings Article | 23 April 2017 Paper

Distributed hydrostatic pressure sensor using a thin-diameter and polarization-maintaining photonics crystal fiber based on Brillouin dynamic gratings

Lei Teng, Yongkang Dong, Dengwang Zhou, Xiaoyi Bao, Liang Chen

Proceedings Volume 10323, 103236Q (2017) https://doi.org/10.1117/12.2263938

KEYWORDS: Sensors, Photonic crystal fibers, Fiber optics sensors, Optical sensing, Birefringence, Spatial resolution, Temperature metrology, Fiber Bragg gratings, Tunable lasers, Silica

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Proceedings Article | 23 April 2017 Paper

Multi-parameter fiber optic sensors based on fiber random grating

Yanping Xu, Mingjiang Zhang, Ping Lu, Stephen Mihailov, Xiaoyi Bao

Proceedings Volume 10323, 1032308 (2017) https://doi.org/10.1117/12.2257795

KEYWORDS: Fiber optics sensors, Fiber lasers, Sensors, Fiber optics, Femtosecond phenomena, Temperature metrology, Refractive index, Cladding, Optical amplifiers, Environmental sensing

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Proceedings Article | 28 September 2015 Paper

1200°C high-temperature distributed Brillouin optical fiber sensing based on photonics crystal fiber

Yongkang Dong, Pengbai Xu, Cheng Fu, Chenglin Zhang, Dengwang Zhou, Taofei Jiang, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao

Proceedings Volume 9634, 963485 (2015) https://doi.org/10.1117/12.2205329

KEYWORDS: Temperature metrology, Single mode fibers, Optical fibers, Photonic crystal fibers, Annealing, Fiber optics sensors, Sensors, Acoustics, Optical sensing, Structured optical fibers

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Proceedings Article | 28 September 2015 Paper

High-sensitive distributed transverse load sensing based on Brillouin dynamic gratings

Lei Teng, Peilin Tong, Taofei Jiang, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, Yongkang Dong

Proceedings Volume 9634, 96346M (2015) https://doi.org/10.1117/12.2194317

KEYWORDS: Birefringence, Spatial resolution, Glasses, Polarization maintaining fibers, Optical sensing, Fiber Bragg gratings, Wave plates, Modulators, Tunable lasers, Optical fibers

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Proceedings Article | 28 September 2015 Paper

Bend-insensitive distributed sensing in singlemode-multimode-singlemode optical fiber structure by using Brillouin optical time-domain analysis

Pengbai Xu, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, Yongkang Dong

Proceedings Volume 9634, 96344Y (2015) https://doi.org/10.1117/12.2194416

KEYWORDS: Single mode fibers, Optical fibers, Interfaces, Sensing systems, Signal attenuation, Optical sensing, Optical amplifiers, Sensors, Multimode fibers, Scattering

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Proceedings Article | 28 September 2015 Paper

Dynamic distributed Brillouin optical fiber sensing based on multi-slope analysis

Dexin Ba, Benzhang Wang, Dengwang Zhou, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, Yongkang Dong

Proceedings Volume 9634, 96344T (2015) https://doi.org/10.1117/12.2194539

KEYWORDS: Optical fibers, Optical sensing, Modulation, Data processing, Spatial resolution, Fiber Bragg gratings, Optical amplifiers, Temperature metrology, Head, Signal generators

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Proceedings Article | 28 September 2015 Paper

Multi-parameter sensing based on the stimulated Brillouin scattering of higher-order acoustic modes in OAM fiber

Yanping Xu, Meiqi Ren, Yang Lu, Ping Lu, Xiaoyi Bao, Sophie LaRochelle

Proceedings Volume 9634, 96340L (2015) https://doi.org/10.1117/12.2194673

KEYWORDS: Acoustics, Scattering, Refractive index, Single mode fibers, Fiber optics sensors, Temperature metrology, Interfaces, Sensors, Cladding, Laser scattering

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Proceedings Article | 1 July 2015 Paper

Dispersion characterization of group birefringence in polarization-maintaining fiber using a Kerr phase-interrogator

Yang Lu, Chams Baker, Xiaoyi Bao

Proceedings Volume 9655, 96550Q (2015) https://doi.org/10.1117/12.2185050

KEYWORDS: Birefringence, Dispersion, Polarization, Polarization maintaining fibers, Phase measurement, Modulation, Beam splitters, Oscilloscopes, Continuous wave operation, Spectrum analysis

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Proceedings Article | 2 June 2014 Paper

Ultrahigh resolution optical spectrometry based on Brillouin dynamic grating

Yongkang Dong, Taofei Jiang, Lei Teng, Hongying Zhang, Liang Chen, Xiaoyi Bao, Zhiwei Lu

Proceedings Volume 9157, 91572U (2014) https://doi.org/10.1117/12.2059406

KEYWORDS: Single mode fibers, Spectroscopy, Spectral resolution, Birefringence, Tunable lasers, Modulation, Optical resolution, Optical filters, Polarization, Fiber lasers

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Proceedings Article | 2 June 2014 Paper

High-resolution high-sensitivity and truly distributed optical frequency domain reflectometry for structural crack detection

Wenhai Li, Xiaoyi Bao, Liang Chen

Proceedings Volume 9157, 91579T (2014) https://doi.org/10.1117/12.2058532

KEYWORDS: Temperature metrology, Reflectometry, Spatial resolution, Fiber Bragg gratings, Structural health monitoring, Sensors, Polarization maintaining fibers, Backscatter, Technetium, Tantalum

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Proceedings Article | 2 June 2014 Paper

Real distributed vibration sensing with high frequency response based on pulse pair

Qian He, Tao Zhu, Xianghui Xiao, Dongmei Diao, Wei Huang, Xiaoyi Bao

Proceedings Volume 9157, 915761 (2014) https://doi.org/10.1117/12.2059252

KEYWORDS: Signal to noise ratio, Scattering, Sensing systems, Signal detection, Reflectometry, Sensors, Light scattering, Modulation, Signal processing, Spatial resolution

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Proceedings Article | 2 June 2014 Paper

Displacement measurement based on cross-phase modulation of orthogonally polarized sinusoidal optical signals

Chams Baker, Xiaoyi Bao

Proceedings Volume 9157, 91572P (2014) https://doi.org/10.1117/12.2059192

KEYWORDS: Modulation, Single mode fibers, Polarization, Interferometry, Signal attenuation, Phase shift keying, Continuous wave operation, Mirrors, Beam splitters, Electrooptic modulators

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Proceedings Article | 2 June 2014 Paper

Tapered polarization-maintaining fiber sensor based on analysis of polarization evolution

Ping Lu, Jia Song, Graeme Niedermayer, Jeremie Harris, Liang Chen, Xiaoyi Bao

Proceedings Volume 9157, 915708 (2014) https://doi.org/10.1117/12.2059617

KEYWORDS: Polarization, Polarization maintaining fibers, Sensors, Polarizers, Magnetism, Spatial frequencies, Correlation function, Birefringence, Cladding, Light

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Proceedings Article | 2 June 2014 Paper

Bend-insensitive fiber based vibration sensor

Yanping Xu, Ping Lu, Farhana Baset, Vedula Ravi Bhardwaj, Xiaoyi Bao

Proceedings Volume 9157, 915775 (2014) https://doi.org/10.1117/12.2059241

KEYWORDS: Fiber optics sensors, Sensors, Cladding, Signal to noise ratio, Fiber optics, Mach-Zehnder interferometers, Single mode fibers, Wet etching, Fusion splicing, Scanning electron microscopy

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Proceedings Article | 8 March 2014 Paper

OTDR and OFDR for distributed multi-parameter sensing

Xiaoyi Bao, Wenhai Li, Zengguang Qin, Liang Chen

Proceedings Volume 9062, 906202 (2014) https://doi.org/10.1117/12.2045807

KEYWORDS: Polarization, Spatial resolution, Sensors, Temperature metrology, Signal detection, Sensing systems, Signal to noise ratio, Rayleigh scattering, Time division multiplexing, Data acquisition

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Proceedings Article | 15 October 2013 Paper

High-spatial-resolution fast Brillouin optical fiber sensor for distributed dynamic measurement based on differential double-pulse

Yongkang Dong, Taofei Jiang, Dengwang Zhou, Dexin Ba, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao

Proceedings Volume 8924, 892415 (2013) https://doi.org/10.1117/12.2031472

KEYWORDS: Spatial resolution, Microwave radiation, Fiber optics sensors, Polarization, Modulation, Signal to noise ratio, Fiber Bragg gratings, Electrooptic modulators, Data acquisition, Vibrometry

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Proceedings Article | 15 October 2013 Paper

Distributed vibration sensing based on time-difference pulses

Qian He, Tao Zhu, Xianghui Xiao, Xiaoyi Bao

Proceedings Volume 8924, 89241M (2013) https://doi.org/10.1117/12.2034185

KEYWORDS: Backscatter, Spatial resolution, Signal detection, Sensors, Ferroelectric materials, Sensing systems, Modulation, Optical fibers, Vibrometry, Interferometers

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Proceedings Article | 7 November 2012 Paper

Continuous wavelet transform for non-stationary vibration detection with phase-OTDR

Zengguang Qin, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, 8421A0 (2012) https://doi.org/10.1117/12.975025

KEYWORDS: Continuous wavelet transforms, Ferroelectric materials, Wavelets, Sensors, Reflectometry, Time-frequency analysis, Interference (communication), Vibrometry, Single mode fibers, Fiber optics sensors

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Proceedings Article | 7 November 2012 Paper

Impacts of Kerr effect and fiber dispersion on long-range Brillouin optical time-domain analysis systems

Yongkang Dong, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, 84219Z (2012) https://doi.org/10.1117/12.974984

KEYWORDS: Scanning probe microscopy, Dispersion, Kerr effect, Modulation, Gaussian pulse, Fiber optics sensors, Nonlinear optics, Signal attenuation, Optoelectronics

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Proceedings Article | 26 October 2012 Paper

Stimulated Brillouin scattering induced refractive index changes measurement in an optical fiber

Da-Peng Zhou, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, 8421CC (2012) https://doi.org/10.1117/12.2013236

KEYWORDS: Refractive index, Optical fibers, Scattering, Slow light, Optical testing, Light scattering, Polarization, Birefringence, Data acquisition, Four wave mixing

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Proceedings Article | 26 October 2012 Paper

Distributed birefringence, strain and temperature measurement by homodyne BOTDR

Yuangang Lu, Xiaoyi Bao, Liang Chen

Proceedings Volume 8421, 8421CB (2012) https://doi.org/10.1117/12.2012124

KEYWORDS: Birefringence, Temperature metrology, Homodyne detection, Spatial resolution, Acoustics, Polarization, Light scattering, Reflectometry, Scattering, Signal detection

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Proceedings Article | 17 October 2012 Paper

High-spatial-resolution distributed vibration measurement using time-resolved optical frequency-domain reflectometry

Da-Peng Zhou, Zengguang Qin, Wenhai Li, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, 842115 (2012) https://doi.org/10.1117/12.974691

KEYWORDS: Spatial resolution, Backscatter, Reflectometry, Vibrometry, Ferroelectric materials, Interferometers, Fourier transforms, Tunable lasers, Polarization, Optical fibers

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Proceedings Article | 17 October 2012 Paper

All-fiber acceleration sensor with temperature self-compensation

Tao Zhu, Qiang Zhang, Leilei Shi, Yusong Hou, Xiaoyi Bao

Proceedings Volume 8421, 84210X (2012) https://doi.org/10.1117/12.970387

KEYWORDS: Sensors, Single mode fibers, Temperature metrology, Quartz, Microelectromechanical systems, Interferometers, Reflectors, Fiber optics sensors, Reflectivity, Mirrors

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Proceedings Article | 17 October 2012 Paper

Distributed birefringence measurement of a polarization maintaining fiber with a 20cm resolution over a 500m range based on Brillouin dynamic grating

Yongkang Dong, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, 84211B (2012) https://doi.org/10.1117/12.974968

KEYWORDS: Birefringence, Polarization maintaining fibers, Spatial resolution, Fiber coatings, Coating, Scattering, Modulation, Phonons, Sensors

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Proceedings Article | 17 October 2012 Paper

High-sensitivity force measurement using optical tapered fiber with optical frequency-domain reflectometry

Xiaozhen Wang, Wenhai Li, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, 84211F (2012) https://doi.org/10.1117/12.975074

KEYWORDS: Single mode fibers, Spatial resolution, Refractive index, Reflectometry, Sensors, Optical testing, Fiber optics sensors, Signal detection, Cladding, Data acquisition

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Proceedings Article | 31 January 2012 Paper

The non-uniformity and dispersion in SBS-based fiber sensors

Xiaoyi Bao, Shangran Xie, Xuan Liu, Liang Chen

Proceedings Volume 8351, 83512Y (2012) https://doi.org/10.1117/12.916230

KEYWORDS: Acoustics, Birefringence, Polarization, Optical fibers, Temperature metrology, Single mode fibers, Sensors, Scattering, Refractive index, Fiber optics sensors

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Proceedings Article | 19 May 2011 Paper

High-axial-resolution distributed lateral displacement measurement based on differential pulse-width pair BOTDA

Yongkang Dong, Xiaoyi Bao, Liang Chen

Proceedings Volume 7753, 7753A8 (2011) https://doi.org/10.1117/12.899386

KEYWORDS: Spatial resolution, Sensors, Fiber optics sensors, Optical fibers, Baryon acoustic oscillations, Polarization, Signal detection, Lithium, Multiplexing, Metrology

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Proceedings Article | 19 May 2011 Paper

Distributed fiber beat length, birefringence and differential group delay measurement using BOTDA technique

Shangran Xie, Xiaoyi Bao, Liang Chen

Proceedings Volume 7753, 7753A6 (2011) https://doi.org/10.1117/12.899543

KEYWORDS: Birefringence, Polarization, Spatial resolution, Modulation, Single mode fibers, Physics, Electronics engineering, Fiber optic communications, Telecommunications, Optical spheres

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Proceedings Article | 17 May 2011 Paper

High performance Brillouin strain and temperature sensor based on frequency division multiplexing using nonuniform fibers over 75km fiber

Yongkang Dong, Xiaoyi Bao, Liang Chen

Proceedings Volume 7753, 77533H (2011) https://doi.org/10.1117/12.885222

KEYWORDS: Optical fibers, Spatial resolution, Frequency division multiplexing, Baryon acoustic oscillations, Fiber optics sensors, Signal to noise ratio, Scattering, Temperature sensors, Lithium

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Proceedings Article | 17 May 2011 Paper

Vibration monitoring with high frequency response based on coherent phase-sensitive OTDR method

Yuelan Lu, Tao Zhu, Xiaoyi Bao, Liang Chen

Proceedings Volume 7753, 77533K (2011) https://doi.org/10.1117/12.885121

KEYWORDS: Signal to noise ratio, Signal detection, Ferroelectric materials, Heterodyning, Signal processing, Modulation, Data acquisition, Acoustic emission, Refractive index, Bridges

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Proceedings Article | 17 May 2011 Paper

Tunable narrow linewidth and stable frequency laser based on stimulated Rayleigh scattering in non-uniform optical fiber

Tao Zhu, Xiaoyi Bao, Liang Chen

Proceedings Volume 7753, 77532Q (2011) https://doi.org/10.1117/12.884992

KEYWORDS: Tunable filters, Tunable lasers, Optical fibers, Optical filters, Fiber lasers, Rayleigh scattering, Laser scattering, Electronic filtering, Scattering, Optical amplifiers

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Proceedings Article | 17 May 2011 Paper

Refractive index sensing based on Mach-Zehnder interferometer formed by three cascaded single-mode fiber tapers

Tao Zhu, Di Wu, Ming Deng, Dewen Duan, Yunjiang Rao, Xiaoyi Bao

Proceedings Volume 7753, 77532P (2011) https://doi.org/10.1117/12.884842

KEYWORDS: Sensors, Interferometers, Cladding, Refractive index, Single mode fibers, Fiber optics sensors, Mach-Zehnder interferometers, Optical fibers, Environmental sensing, Fiber optics

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Proceedings Article | 17 May 2011 Paper

Characteristics of stimulated Rayleigh scattering in optical fibers

Tao Zhu, Xiaoyi Bao, Liang Chen, Hao Liang, Yongkang Dong

Proceedings Volume 7753, 77532R (2011) https://doi.org/10.1117/12.884990

KEYWORDS: Rayleigh scattering, Optical fibers, Fiber lasers, Polarization, Liquids, Scattering, Single mode fibers, Optical filters, Glasses, Signal detection

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Proceedings Article | 17 May 2011 Paper

Refractive index and temperature sensor based on double-pass in-line Mach-Zehnder interferometer

Yi Li, Liang Chen, Edouard Harris, Xiaoyi Bao, Wojtek Bock

Proceedings Volume 7753, 77530Q (2011) https://doi.org/10.1117/12.884932

KEYWORDS: Sensors, Cladding, Temperature sensors, Refractive index, Mach-Zehnder interferometers, Mirrors, Signal attenuation, Optical fibers, Fiber optics sensors, Interferometers

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Proceedings Article | 17 May 2011 Paper

Tunable Fabry-Perot filter based on hollow-core photonic bandgap fiber and micro-fiber and its application

Xiaozhen Wang, Tao Zhu, Liang Chen, Xiaoyi Bao

Proceedings Volume 7753, 77530E (2011) https://doi.org/10.1117/12.886519

KEYWORDS: Optical filters, Single mode fibers, Tunable filters, Fabry–Perot interferometers, Mirrors, Reflection, Fiber lasers, Reflectivity, Multiplexing, Optical amplifiers

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Proceedings Article | 17 May 2011 Paper

Simultaneous temperature and strain measurement with bandwidth and peak of the Brillouin spectrum in LEAF fiber

Xuan Liu, Xiaoyi Bao

Proceedings Volume 7753, 775328 (2011) https://doi.org/10.1117/12.887441

KEYWORDS: Acoustics, Temperature metrology, Single mode fibers, Waveguides, Refractive index, Spatial resolution, Absorption, Fiber characterization, Acousto-optics, Scattering

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Proceedings Article | 17 May 2011 Paper

100km sensing range Brillouin optical time domain analysis based on time-division multiplexing

Yongkang Dong, Xiaoyi Bao, Liang Chen

Proceedings Volume 7753, 775308 (2011) https://doi.org/10.1117/12.885224

KEYWORDS: Spatial resolution, Time division multiplexing, Signal to noise ratio, Fiber optics sensors, Scattering, Baryon acoustic oscillations, Sensors, Optical sensing, Signal attenuation

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Proceedings Article | 17 May 2011 Paper

A novel optical fiber current sensor using polarization diversity and a Faraday rotation mirror cavity

Hongying Zhang, Yongkang Dong, Jesse Leeson, Liang Chen, Xiaoyi Bao

Proceedings Volume 7753, 77531J (2011) https://doi.org/10.1117/12.885371

KEYWORDS: Sensors, Signal detection, Polarization, Signal to noise ratio, Optical fibers, Mirrors, Magnetism, Interference (communication), Birefringence, Fiber optics sensors

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Proceedings Article | 15 April 2011 Paper

High performance BOTDA for long range sensing

Xiaoyi Bao, Liang Chen

Proceedings Volume 7982, 798206 (2011) https://doi.org/10.1117/12.881041

KEYWORDS: Spatial resolution, Signal to noise ratio, Time division multiplexing, Scattering, Sensors, Raman spectroscopy, Temperature metrology, Fused deposition modeling, Signal attenuation, Polarization

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Proceedings Article | 20 April 2010 Paper

Pushing the limit of the distributed Brillouin sensors for the sensing length and the spatial resolution

Xiaoyi Bao, Hao Liang, Yongkang Dong, Wenhai Li, Yun Li, Liang Chen

Proceedings Volume 7677, 767702 (2010) https://doi.org/10.1117/12.849018

KEYWORDS: Spatial resolution, Signal to noise ratio, Sensors, Sensing systems, Distortion, Signal attenuation, Optical amplifiers, Polarization, Signal processing, Scattering

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Proceedings Article | 14 October 2009 Paper

Novel distributed birefringence measurement based on transient Brillouin grating in polarization-maintaining fibers and its application in sensing

Yongkang Dong, Xiaoyi Bao, Liang Chen, Yuelan Lv

Proceedings Volume 7503, 75037Y (2009) https://doi.org/10.1117/12.848675

KEYWORDS: Birefringence, Phase modulation, Temperature metrology, Spatial resolution, Optical fibers, Polarization maintaining fibers, Scattering, Light scattering, Baryon acoustic oscillations, Photonic crystal fibers

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Proceedings Article | 14 October 2009 Paper

High spatial resolution and long-distance BOTDA using differential Brillouin gain in a dispersion shifted fiber

Yongkang Dong, Xiaoyi Bao

Proceedings Volume 7503, 750384 (2009) https://doi.org/10.1117/12.848676

KEYWORDS: Spatial resolution, Signal attenuation, Single mode fibers, Signal to noise ratio, Sensing systems, Modulation, Fiber optics sensors, Sensors, Signal detection

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Proceedings Article | 5 October 2009 Paper

Signal-to-noise ratio improvement in Brillouin sensing

Nicolas Linze, Wenhai Li, Xiaoyi Bao

Proceedings Volume 7503, 75036F (2009) https://doi.org/10.1117/12.835133

KEYWORDS: Signal to noise ratio, Spatial resolution, Receivers, Signal attenuation, Data acquisition, Fiber optics, Physics, Fiber optics sensors, Scattering, Temperature metrology

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Proceedings Article | 5 October 2009 Paper

Frequency-shifted light storage in a photonics crystal fiber via stimulated Brillouin scattering

Yongkang Dong, Xiaoyi Bao, Wenhai Li, Yun Li

Proceedings Volume 7503, 75032D (2009) https://doi.org/10.1117/12.834917

KEYWORDS: Acoustics, Light scattering, Scattering, Data storage, Photonic crystal fibers, Polarization, Single mode fibers, Optical fibers, Baryon acoustic oscillations, Lithium

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Proceedings Article | 5 October 2009 Paper

Acoustic emission sensor based on biconical fiber micro-tapers

Yi Li, Xiaozhen Wang, Xiaoyi Bao

Proceedings Volume 7503, 75032V (2009) https://doi.org/10.1117/12.834882

KEYWORDS: Signal to noise ratio, Single mode fibers, Sensors, Acoustic emission, Acoustics, Interferometers, Refractive index, Fiber optics sensors, Fiber couplers, Metals

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Proceedings Article | 5 October 2009 Paper

12-km distributed fiber sensor based on differential pulse-width pair BOTDA

Yongkang Dong, Xiaoyi Bao, Wenhai Li

Proceedings Volume 7503, 75032G (2009) https://doi.org/10.1117/12.834919

KEYWORDS: Spatial resolution, Signal to noise ratio, Signal attenuation, Fiber optics sensors, Baryon acoustic oscillations, Lithium, Signal detection, Scattering, Optical fibers

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Proceedings Article | 5 August 2009 Paper

Brillouin spectrum narrowing in high extinction ratio nanosecond pulse from phase locked DFB lasers

Yun Li, Xiaoyi Bao, Jeffrey Snoddy, Liang Chen

Proceedings Volume 7386, 73861F (2009) https://doi.org/10.1117/12.839204

KEYWORDS: Mode locking, Laser scattering, Laser sources, Fiber lasers, Pulsed laser operation, Sensors, Scattering, Laser beam diagnostics, Phonons, Acoustics

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Proceedings Article | 24 February 2009 Paper

Relation between diffusion constant and particle density in TiO2 suspended solutions

Chen Zhang, Xingyu Zhang, Qingpu Wang, Shuzhen Fan, Zhengping Wang, Ruijun Lan, Xiaoyi Bao

Proceedings Volume 7201, 72011H (2009) https://doi.org/10.1117/12.811011

KEYWORDS: Diffusion, Particles, Titanium, Picosecond phenomena, Optical spheres, Optical fibers, Absorption, Streak cameras, Light scattering, Titanium dioxide

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Proceedings Article | 9 February 2009 Paper

Reverse peak of Brillouin spectrum in BOTDA sensor

Feng Wang, Xiaoyi Bao, Yun Li, Liang Chen, Xuping Zhang

Proceedings Volume 7158, 71580J (2009) https://doi.org/10.1117/12.812016

KEYWORDS: Spatial resolution, Sensors, Pulse generators, Baryon acoustic oscillations, Modulation, Electrooptic modulators, Acoustics, Temperature metrology, Signal detection

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Proceedings Article | 9 February 2009 Paper

Distributed fiber sensors based on stimulated Brillouin scattering with centimeter spatial resolution

Xiaoyi Bao, Wenhai Li, Yun Li, Liang Chen

Proceedings Volume 7158, 715802 (2009) https://doi.org/10.1117/12.819860

KEYWORDS: Spatial resolution, Signal to noise ratio, Sensors, Phonons, Acoustics, Modulation, Scattering, Signal attenuation, Signal detection, Convolution

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Proceedings Article | 12 August 2008 Paper

Feasibility of Kerr-lens mode locking in fiber lasers

V. Kalosha, Liang Chen, Xiaoyi Bao

Proceedings Volume 7099, 70990S (2008) https://doi.org/10.1117/12.807415

KEYWORDS: Fiber lasers, Mode locking, Refractive index, Dispersion, Photonic crystal fibers, Laser systems engineering, Structured optical fibers, Glasses, Laser crystals, Solid state lasers

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Proceedings Article | 12 August 2008 Paper

The mass loading effect on lightweight cantilever mode frequency measurement by optical fiber sensor

Ziyi Zhang, Pingyu Zhu, Xiaoyi Bao

Proceedings Volume 7099, 70991X (2008) https://doi.org/10.1117/12.804703

KEYWORDS: Optical fibers, Sensors, Fiber optics sensors, Transducers, Optical testing, Head, Polarization, Finite element methods, Single mode fibers, Sensing systems

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Proceedings Article | 16 May 2008 Paper

Using dispersion decreasing fiber to generate pulse delay and compensate the pulse distortion

Xiaoyi Bao, Wenhai Li, Liang Chen

Proceedings Volume 7004, 70043K (2008) https://doi.org/10.1117/12.785470

KEYWORDS: Distortion, Laser beam diagnostics, Slow light, Dispersion, Light scattering, Scattering, Laser scattering, Signal attenuation, Beam shaping, Optical signal processing

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Proceedings Article | 16 May 2008 Paper

Crack detection in reinforced concrete beam by use of distributed Brillouin fiber sensor

Chunshu Zhang, Xiaoyi Bao, Wenhai Li, Liang Chen, Amre Deif, Bruno Cousin, Beatriz Martín-Pérez

Proceedings Volume 7004, 70041T (2008) https://doi.org/10.1117/12.785871

KEYWORDS: Spatial resolution, Fiber optics sensors, Scattering, Sensors, Laser scattering, Optical fibers, Light scattering, Civil engineering, Structured optical fibers, Sensing systems

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Proceedings Article | 16 May 2008 Paper

Effect of temperature on Brillouin gain spectrum and aging behavior in carbon/polyimide coated fiber

Chunshu Zhang, Xiaoyi Bao, Wenhai Li, Liang Chen, Mei Du

Proceedings Volume 7004, 700413 (2008) https://doi.org/10.1117/12.785543

KEYWORDS: Fiber coatings, Temperature metrology, Coating, Scattering, Optical fibers, Carbon, Environmental sensing, Reliability, Light scattering, Acoustics

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Proceedings Article | 16 May 2008 Paper

Concrete pavement vibration monitoring due to the car passing using optical fiber sensor

Ziyi Zhang, Samuel LeBlanc, Xiaoyi Bao

Proceedings Volume 7004, 70041U (2008) https://doi.org/10.1117/12.785876

KEYWORDS: Sensors, Fiber optics sensors, Fiber reinforced polymers, Optical fibers, Polarization, Birefringence, Bridges, Structured optical fibers, Phase shifts, Bandpass filters

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Proceedings Article | 26 October 2007 Paper

Predict the pipeline buckling using the broadening factor of Brillouin spectrum width

Chunshu Zhang, Xiaoyi Bao, Istemi Ozkan, Magdi Mohareb, Fabien Ravet, Lufan Zou

Proceedings Volume 6796, 67961Y (2007) https://doi.org/10.1117/12.779080

KEYWORDS: Polymers, Clocks, Fiber optics sensors, Fiber coatings, Sensors, Structural health monitoring, Signal processing, Actuators, Coating, Nervous system

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Proceedings Article | 26 October 2007 Paper

The statistics of PMD for an optical pulse and its relationship to pulse broadening

Ping Lu, Stephen Mihailov, Liang Chen, Xiaoyi Bao

Proceedings Volume 6796, 679630 (2007) https://doi.org/10.1117/12.778933

KEYWORDS: Picosecond phenomena, Polarization, Wave plates, Statistical modeling, Solids, Telecommunications, Distributed interactive simulations, Monte Carlo methods, Lutetium, Baryon acoustic oscillations

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Proceedings Article | 5 March 2007 Paper

The distributed Brillouin sensor system based on offset locking two DFB lasers

Yun Li, Xiaoyi Bao, Lufan Zou, Fabien Ravet

Proceedings Volume 6595, 65952T (2007) https://doi.org/10.1117/12.725907

KEYWORDS: Sensors, Optical fibers, Laser stabilization, Polarization, Temperature metrology, Optical amplifiers, Scattering, Spatial resolution, Signal to noise ratio, Laser scattering

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Proceedings Article | 5 March 2007 Paper

Measuring tide and vibration of the submarine and aerial fibers by polarization mode dispersion

Xiaoyi Bao, Ziyi Zhang, D. Waddy, Liang Chen

Proceedings Volume 6595, 659536 (2007) https://doi.org/10.1117/12.725917

KEYWORDS: Optical fibers, Polarization, Sun, Temperature metrology, Visible radiation, Tunable lasers, Polarimetry, Optical amplifiers, Vibrometry, Laminated object manufacturing

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Proceedings Article | 8 September 2006 Paper

Comparison of wavelength conversions based on cascaded second-harmonic generation/difference-frequency generation under continuous-wave and pulsed pumping

Yong Wang, Jorge Fonseca-Campos, Chang-Qing Xu, Shiquan Yang, Evgueni Ponomarev, Xiaoyi Bao

Proceedings Volume 6343, 63431M (2006) https://doi.org/10.1117/12.707762

KEYWORDS: Picosecond phenomena, Waveguides, Wave propagation, Second-harmonic generation, Continuous wave operation, Optical filters, Fiber lasers, Actinium, Signal attenuation

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SPIE Journal Paper | 1 May 2006

Theoretical analysis and measurement of polarization mode dispersion probability density function in optical fiber system with components having discrete differential group delay values

Liang Chen, Hui Wang, Xiaoyi Bao

OE, Vol. 45, Issue 05, 055006, (May 2006) https://doi.org/10.1117/12.10.1117/1.2205154

KEYWORDS: Optical fibers, Polarization, Dispersion, Optical engineering, Baryon acoustic oscillations, Birefringence, Phase modulation, Analytical research, Photonics, Physics

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Proceedings Article | 30 March 2006 Paper

A simple method to identify the spatial location complication due to the transient phonon relaxation on the Brillouin loss spectrum

Xiaoyi Bao, Qinrong Yu, Fabien Ravet, Liang Chen

Proceedings Volume 6167, 616715 (2006) https://doi.org/10.1117/12.659683

KEYWORDS: Signal attenuation, Phonons, Acoustics, Sensors, Single mode fibers, Signal processing, Signal to noise ratio, Phase modulation, Polarization

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Proceedings Article | 20 March 2006 Paper

Accurate strain detection and localisation with the distributed Brillouin sensor based on phenomenological signal processing approach

Fabien Ravet, Xiaoyi Bao, Lufan Zou, Qinrong Yu, Yun Li, Vladimir Kalosha, Liang Chen

Proceedings Volume 6176, 61761C (2006) https://doi.org/10.1117/12.663995

KEYWORDS: Electro optical modeling, Sensors, Signal processing, Electrooptic modulators, Structural health monitoring, Optical fibers, Temperature metrology, Continuous wave operation, Data modeling

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Proceedings Article | 10 November 2005 Paper

Investigation of Brillouin effects in carbon coating single-mode fiber using for inspection of pipeline buckling

Lufan Zou, Xiaoyi Bao, Fabien Ravet, Yun Li, Liang Chen, Mei Du, David DiGiovanni

Proceedings Volume 6004, 600405 (2005) https://doi.org/10.1117/12.630858

KEYWORDS: Coating, Carbon, Single mode fibers, Spatial resolution, Fiber coatings, Fiber optics sensors, Temperature metrology, Sensors, Inspection, Optical fibers

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SPIE Journal Paper | 1 November 2005

Wavelength dependence study on the transmission characteristics of the concatenated polarization dependent loss and polarization mode dispersion elements

Shiquan Yang, Liang Chen, Xiaoyi Bao

OE, Vol. 44, Issue 11, 115006, (November 2005) https://doi.org/10.1117/12.10.1117/1.2124607

KEYWORDS: Polarization, Optical components, Optical engineering, Baryon acoustic oscillations, Telecommunications, Optical fibers, Environmental sensing, Power meters, Calibration, Picosecond phenomena

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Proceedings Article | 14 October 2005 Paper

Wavelength dependence study on the transmission characteristics of the concatenated PDL and PMD elements

Shiquan Yang, Liang Chen, Xiaoyi Bao

Proceedings Volume 5970, 59702M (2005) https://doi.org/10.1117/12.626043

KEYWORDS: Polarization, Telecommunications, Power meters, Signal attenuation, Optical components, Optical fibers, Manganese, Tunable lasers, Calibration, Baryon acoustic oscillations

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Proceedings Article | 13 October 2005 Paper

Polarization dependent loss vector measurement in a system with polarization mode dispersion

Liang Chen, Ziyi Zhang, Xiaoyi Bao

Proceedings Volume 5970, 59701W (2005) https://doi.org/10.1117/12.626459

KEYWORDS: Polarization, Numerical integration, Motion measurement, Tunable lasers, Dispersion, Poincaré sphere, Numerical simulations, Telecommunications, Phase modulation, Baryon acoustic oscillations

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Proceedings Article | 13 October 2005 Paper

Eye diagram evaluation of WDM DPSK fiber optical system in presence of PMD, PDL, and CD

Li Xie, Liang Chen, Saeed Hadjifaradji, Xiaoyi Bao

Proceedings Volume 5970, 59701U (2005) https://doi.org/10.1117/12.625660

KEYWORDS: Optical filters, Wavelength division multiplexing, Polarization, Eye, Signal detection, Fiber optics, Eye models, Electronic filtering, Receivers, Sensors

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Proceedings Article | 13 October 2005 Paper

Analytical evaluation of the effect of amplifier noise on eye diagram for communication systems having PMD, PDL, and CD

Saeed Hadjifaradji, Liang Chen, Xiaoyi Bao

Proceedings Volume 5970, 59702U (2005) https://doi.org/10.1117/12.628615

KEYWORDS: Optical amplifiers, Polarization, Eye, Telecommunications, Fiber amplifiers, Critical dimension metrology, Single mode fibers, Wave plates, Picosecond phenomena, Testing and analysis

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Proceedings Article | 4 October 2005 Paper

Repetition-rate-doubled or -tripled FM mode-locking fiber laser by using phase modulated optical fiber loop mirror

Shiquan Yang, Evgueni Ponomarev, Xiaoyi Bao

Proceedings Volume 5971, 597120 (2005) https://doi.org/10.1117/12.626044

KEYWORDS: Modulation, Mode locking, Fermium, Frequency modulation, Fiber lasers, Modulators, Mirrors, Optical fibers, Phase shift keying, Amplitude modulation

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Proceedings Article | 1 October 2005 Paper

Picosecond-pulse wavelength conversion based on SHG nonlinear interaction in a PPMGLN waveguide

Jorge Fonseca-Campos, Yong Wang, Bo Chen, Chang-qing Xu, Shiquan Yang, Evgueni Ponomarev, Xiaoyi Bao

Proceedings Volume 5971, 59710B (2005) https://doi.org/10.1117/12.628640

KEYWORDS: Second-harmonic generation, Picosecond phenomena, Waveguides, Fiber lasers, Pulsed laser operation, Harmonic generation, Wave propagation, Crystals, Optical amplifiers, Lithium niobate

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Proceedings Article | 23 May 2005 Paper

CW pre-injection of pump-probe Brillouin sensors for high spatial and strain (temperature)resolutions

Shahraam Afshar, Liang Chen, Xiaoyi Bao

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624265

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Proceedings Article | 23 May 2005 Paper

The effect of optical phase on the Brillouin spectrum in the distributed sensor system

Xiaoyi Bao, Yidun Wan, Lufan Zou, Liang Chen

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624249

KEYWORDS: Amplitude modulation, Phase modulation, Sensors, Signal attenuation, Distributed computing, Laser beam diagnostics, Mach-Zehnder interferometers, Phonons, Phase shift keying, Optical modulators

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Proceedings Article | 23 May 2005 Paper

Criterion for sub-pulse-length resolution and minimum frequency shift in distributed Brillouin sensors

Fabien Ravet, Xiaoyi Bao, Liang Chen

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624226

KEYWORDS: Spatial resolution, Sensors, Error analysis, Fiber optics sensors, Continuous wave operation, Scatter measurement, Scattering, Temperature metrology, Signal attenuation

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Proceedings Article | 23 May 2005 Paper

Distributed fiber strain sensor based on Brillouin scattering for inspection of pipeline buckling

Lufan Zou, Xiaoyi Bao, Fabien Ravet, Liang Chen, Joe Zhou, Tom Zimmerman

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624267

KEYWORDS: Sensors, Clocks, Scattering, Fiber optics sensors, Optical fibers, Inspection, Temperature metrology, Structured optical fibers, Spatial resolution, Environmental sensing

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Proceedings Article | 23 May 2005 Paper

Column structure deformation monitoring with the distributed Brillouin sensor

Fabien Ravet, Xiaoyi Bao, Togay Ozbakkaloglu, Muslim Majeed, Murat Saatcioglu, Graham Ferrier, Lufan Zou, Liang Chen

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624228

KEYWORDS: Sensors, Optical fibers, Earthquakes, Structural health monitoring, Fiber reinforced polymers, Civil engineering, Composites, Sensing systems, Baryon acoustic oscillations, Physics

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Proceedings Article | 23 May 2005 Paper

Distributed fiber Brillouin strain and temperature sensor with centimeter spatial resolution by coherent probe-pump technique

Lufan Zou, Xiaoyi Bao, Yidun Wan, Fabien Ravet, Liang Chen

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.623430

KEYWORDS: Spatial resolution, Continuous wave operation, Signal to noise ratio, Single mode fibers, Temperature sensors, Sensors, Signal attenuation, Pulsed laser operation, Numerical simulations, Wave propagation

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Proceedings Article | 16 November 2004 Paper

Modeling of stimulated Brillouin scattering in microstructured fibers

Shahraam Afshar, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567548

KEYWORDS: Optical fibers, Cladding, Scattering, Micro optical fluidics, Laser scattering, Refractive index, 3D modeling, Acoustics, Free space, Matrices

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Proceedings Article | 16 November 2004 Paper

Demonstration of the detection of buckling effects in steel pipelines and beams by the Brillouin sensor

Fabien Ravet, Lufan Zou, Xiaoyi Bao, Liang Chen, RongFeng Huang, Heng Khoo

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567241

KEYWORDS: Sensors, Optical fibers, Spatial resolution, Structural health monitoring, Signal processing, Civil engineering, Distributed computing, Temperature metrology, Visualization, Convolution

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Proceedings Article | 16 November 2004 Paper

Effect of pulsewidth on strain measurement accuracy in Brillouin-scattering-based fiber optic sensors

Fabien Ravet, Xiaoyi Bao, Liang Chen

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567240

KEYWORDS: Sensors, Spatial resolution, Error analysis, Continuous wave operation, Scattering, Fiber optics sensors, Temperature metrology, Light emitting diodes, Rayleigh scattering

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Proceedings Article | 16 November 2004 Paper

Development of the offset-locking-based distributed sensor

Ou Chen, Yidun Wan, Lufan Zou, Guilin Wu, Dan Falk, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567098

KEYWORDS: Sensors, Laser scattering, Scattering, Nd:YAG lasers, Laser stabilization, Spatial resolution, Fiber lasers, Feedback signals, Laser optics, Optical simulations

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Proceedings Article | 16 November 2004 Paper

Computer-controlled harmonic FM mode-locking of 40-GHz repetition-rate fiber laser

Evgueni Ponomarev, Shiquan Yang, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567389

KEYWORDS: Mode locking, Modulators, Fiber lasers, Modulation, Laser resonators, Phase shift keying, Fermium, Frequency modulation, Software development, Photodiodes

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Proceedings Article | 16 November 2004 Paper

Multicanonical investigation of joint probability density function of PMD and PDL

David Waddy, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567470

KEYWORDS: Monte Carlo methods, Picosecond phenomena, Telecommunications, Optical communications, Polarization, Birefringence, Signal attenuation, Systems modeling, Photonics, Optical amplifiers

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Proceedings Article | 16 November 2004 Paper

Centimeter spatial resolution of distributed optical fiber sensor for structural health monitoring

Lufan Zou, Xiaoyi Bao, Yidun Wan, Fabien Ravet, Liang Chen

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567114

KEYWORDS: Spatial resolution, Sensors, Signal attenuation, Continuous wave operation, Single mode fibers, Fiber optics sensors, Structural health monitoring, Aluminum, Structured optical fibers, Acoustics

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Proceedings Article | 16 November 2004 Paper

Wide chirp spectrum from FM oscillation fiber laser and its application in pulse generation

Shiquan Yang, Evgueni Ponomarev, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567072

KEYWORDS: Modulation, Fermium, Frequency modulation, Fiber lasers, Modulators, Single mode fibers, Phase shift keying, Optical filters, Pulsed laser operation, Optical communications

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Proceedings Article | 16 November 2004 Paper

Optical eye diagram evaluation for communication systems having PMD, PDL, and CD for chirped input pulse modulators

Saeed Hadjifaradji, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567475

KEYWORDS: Picosecond phenomena, Eye, Telecommunications, Modulators, Polarization, Single mode fibers, Optical communications, Dispersion, Photonics, Critical dimension metrology

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Proceedings Article | 16 November 2004 Paper

High accuracy temperature and strain measurement with cm spatial resolution for distributed Brillouin-based fiber optic sensors

Shahraam Afshar, Liang Chen, Xiaoy Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567509

KEYWORDS: Signal to noise ratio, Spatial resolution, Sensors, Fiber optics sensors, Temperature metrology, Laser beam diagnostics, Continuous wave operation, Phonons, Pulsed laser operation, Signal attenuation

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Proceedings Article | 16 November 2004 Paper

Simulation of the distributed fiber optic pump-probe Brillouin sensor

Yidun Wan, Sharhraam Afshar, Lufan Zou, Liang Chen, Xiaoyi Bao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567410

KEYWORDS: Sensors, Phonons, Fiber optics sensors, Computer simulations, Pulsed laser operation, Fiber optics, Signal attenuation, Numerical analysis, Gaussian pulse

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Proceedings Article | 16 November 2004 Paper

A study on the jacket effect of fiber optic sensors

Yong Ding, Bin Shi, Xiaoyi Bao, Junqi Gao

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.566581

KEYWORDS: Optical fibers, Fiber optics sensors, Sensors, Glasses, Coating, Structural health monitoring, Reflectometry, Structured optical fibers, Baryon acoustic oscillations, Optical sensing

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Proceedings Article | 29 July 2004 Paper

Highly precise distributed Brillouin scattering sensor for structural health monitoring of optical ground wire cable

Lufan Zou, Fabien Ravet, Xiaoyi Bao, Liang Chen

Proceedings Volume 5391, (2004) https://doi.org/10.1117/12.540193

KEYWORDS: Sensors, Scattering, Spatial resolution, Aluminum, Single mode fibers, Continuous wave operation, Structural health monitoring, Fiber optics sensors, Structured optical fibers, Fiber Bragg gratings

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Proceedings Article | 29 July 2004 Paper

Simultaneous strain and temperature measurement in PM fibers using Brillouin frequency, power, and bandwidth

Qinrong Yu, Xiaoyi Bao, Liang Chen

Proceedings Volume 5391, (2004) https://doi.org/10.1117/12.539986

KEYWORDS: Phase modulation, Temperature metrology, Optical fibers, Polarization, Sensors, Scattering, Spatial resolution, Fiber lasers, Refractive index, Laser scattering

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Proceedings Article | 27 July 2004 Paper

Simultaneous distributed Brillouin strain and temperature sensor with photonic crystal fiber

Lufan Zou, Xiaoyi Bao, Liang Chen

Proceedings Volume 5384, (2004) https://doi.org/10.1117/12.540177

KEYWORDS: Temperature metrology, Spatial resolution, Photonic crystal fibers, Acoustics, Silica, Temperature sensors, Scattering, Solids, Single mode fibers, Waveguides

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Proceedings Article | 20 July 2004 Paper

Distributed Brillouin temperature measurements without frequency scanning for dymanic process monitoring

Graham Ferrier, Xiaoyi Bao, Lufan Zou, Liang Chen

Proceedings Volume 5393, (2004) https://doi.org/10.1117/12.548107

KEYWORDS: Temperature metrology, Spatial resolution, Optical fibers, Flame detectors, Fiber optics sensors, Fiber optics, Sensors, Laser beam diagnostics, Single mode fibers, Data acquisition

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