Dr. Tuanwei Xu Profile

Dr. Tuanwei Xu

at Institute of Semiconductors CAS

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 19 December 2022 Poster + Paper

Field trial of abyss-class DAS system in South China Sea

Dimin Deng, Tuanwei Xu, Hanyu Zhang, Chunliang Yu, Lilong Ma, Kai Cao, Yinghao Jiang, Fang Li, Shiguo Wu

Proceedings Volume 12321, 123211D (2022) https://doi.org/10.1117/12.2647191

KEYWORDS: Data acquisition, Ocean optics, Time-frequency analysis, Optical fiber cables, Digital recording, Signal processing, Sensing systems, Data processing, Optical sensing

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Proceedings Article | 19 December 2022 Poster + Paper

Nonlinear effects in φ-OTDR system

Yinghao Jiang, Tuanwei Xu, Lilong Ma, Kai Cao, Yaning Xie, Jing Zhang, Dimin Deng, Yuliang Liu

Proceedings Volume 12321, 1232110 (2022) https://doi.org/10.1117/12.2642254

KEYWORDS: Scanning probe microscopy, Modulation, Complex systems, Numerical simulations, Refractive index, Nonlinear optics, Dispersion, Single mode fibers, Sensing systems

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SPIE Journal Paper | 8 March 2021

Mini-distributed acoustic sensing module for submarine application

Tuanwei Xu, Lilong Ma, Kaiheng Yang, Fang Li

OE, Vol. 60, Issue 03, 034106, (March 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.3.034106

KEYWORDS: Acoustics, Spatial resolution, Signal detection, Signal to noise ratio, Demodulation, Data storage, Sensing systems, Data processing, Data acquisition, Backscatter

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Proceedings Article | 8 January 2021 Paper

Field trial of DAS system for seismic data acquisition in lagoon

Lilong Ma, Tuanwei Xu, Kaiheng Yang, Fang Li

Proceedings Volume 11607, 116070H (2021) https://doi.org/10.1117/12.2585437

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Proceedings Article | 10 October 2020 Paper

A novel mini-DAS module for submarine application

Tuanwei Xu, Lilong Ma, Kaiheng Yang, Fang Li

Proceedings Volume 11554, 115541A (2020) https://doi.org/10.1117/12.2573693

KEYWORDS: Spatial resolution, Signal to noise ratio, Acoustics, Single mode fibers, Optical design, Integrated optics, Ocean optics, Interference (communication), Signal detection

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Proceedings Article | 10 October 2020 Paper

An event recognition method for Phi-OTDR based on the Gaussian mixture model/hidden Markov models

Lilong Ma, Tuanwei Xu, Kaiheng Yang, Fang Li

Proceedings Volume 11554, 1155417 (2020) https://doi.org/10.1117/12.2573624

KEYWORDS: Signal detection, Expectation maximization algorithms, Safety, Geophysics, Structured optical fibers, Databases, Interference (communication), Iron, Visualization, Bandpass filters

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Proceedings Article | 18 December 2019 Paper

Theoretical study of optimal gauge length in a helically wound cable for distributed acoustic sensing system

Kaiheng Yang, Tuanwei Xu, Lilong Ma, Fang Li

Proceedings Volume 11340, 1134014 (2019) https://doi.org/10.1117/12.2547716

KEYWORDS: Wavelets, Signal to noise ratio, Acoustics, Sensing systems, Wave propagation, Seismic sensors, Fiber optics sensors, Signal detection, Optical fibers, Spatial resolution

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Proceedings Article | 18 December 2019 Paper

Fiber microphone based on distributed acoustic sensing

Lilong Ma, Tuanwei Xu, Kaiheng Yang, Fang Li, Qingshan Kong

Proceedings Volume 11340, 1134013 (2019) https://doi.org/10.1117/12.2547658

KEYWORDS: Acoustics, Fiber optics, Fiber optics tests, Fiber optics sensors, Laser engraving, Structured optical fibers, Optical components, Geometrical optics, Data acquisition, Optical fabrication

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Proceedings Article | 12 December 2018 Paper

Optical fiber hydrophone based on distributed acoustic sensing

Yang Yang, Tuanwei Xu, Shengwen Feng, Jianfen Huang, Fang Li

Proceedings Volume 10849, 108490B (2018) https://doi.org/10.1117/12.2503842

KEYWORDS: Acoustics, Optical fibers, Signal detection, Data acquisition, Rayleigh scattering, Sensing systems, Optical components, Signal processing, Fiber optics, Fiber lasers

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Proceedings Article | 12 December 2018 Paper

Multiple disturbance detection and intrusion recognition in distributed acoustic sensing

Jianfen Huang, Tuanwei Xu, Shengwen Feng, Yang Yang, Fang Li, Jinming Zhou, Hesper Yu

Proceedings Volume 10849, 108490E (2018) https://doi.org/10.1117/12.2503871

KEYWORDS: Signal processing, Acoustics, Optical fibers, Pattern recognition, Inspection, Data acquisition, Feature extraction, Signal detection, Sensing systems, Image classification

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Proceedings Article | 12 December 2018 Paper

Enhanced SNR phase-sensitive OTDR system with active fiber

Shengwen Feng, Tuanwei Xu, Jianfen Huang, Yang Yang, Fang Li, Jinming Zhou, Hesper Yu

Proceedings Volume 10849, 108490C (2018) https://doi.org/10.1117/12.2503844

KEYWORDS: Signal to noise ratio, Remote sensing, Acoustics, Fiber optics sensors

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Proceedings Article | 12 December 2018 Paper

Field test of surface seismic measurement with a distributed acoustic sensing system

Tuanwei Xu, Shengwen Feng, Jianfen Huang, Yang Yang, Fang Li, Jinming Zhou, Hesper Yu

Proceedings Volume 10849, 108490D (2018) https://doi.org/10.1117/12.2503845

KEYWORDS: Backscatter, Optical fiber cables, Acoustics, Fiber optics sensors, Sensors

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Proceedings Article | 25 October 2018 Paper

A real-time multichannel distributed acoustic sensing system with phase-sensitive optical domain reflectometry technology

Shengwen Feng, Fang Li, Tuanwei Xu, Lilong Ma, Fei Li

Proceedings Volume 10822, 108220A (2018) https://doi.org/10.1117/12.2503833

KEYWORDS: Remote sensing, Acoustics, Signal processing, Backscatter, Data acquisition, Sensing systems, Reflectometry, Fiber optics sensors, Signal detection

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Proceedings Article | 14 November 2016 Paper

Seismic wave detection system based on fully distributed acoustic sensing

Yue Jiang, Tuanwei Xu, Shengwen Feng, Jianfen Huang, Yang Yang, Gaoran Guo, Fang Li

Proceedings Volume 10025, 100250C (2016) https://doi.org/10.1117/12.2246818

KEYWORDS: Optical fibers, Sensing systems, Acoustics, Seismic sensors, Sensors, Light scattering, Rayleigh scattering, Signal detection, Scattering, Demodulation

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Proceedings Article | 3 December 2014 Paper

Effects of Rayleigh backscattering on distributed feedback fiber laser sensors

Tuanwei Xu, Meizhen Ren, Jun He, Gaosheng Fang, Fang Li, Yuliang Liu

Proceedings Volume 9297, 92973B (2014) https://doi.org/10.1117/12.2073022

KEYWORDS: Fiber lasers, Backscatter, Sensors, Phase shifts, Reflectivity, Single mode fibers, Sensor networks, Laser systems engineering, Mirrors, Laser resonators

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SPIE Journal Paper | 11 June 2014

Effects of Rayleigh backscattering on the stability of distributed feedback fiber laser sensors

Tuanwei Xu, Meizhen Ren, Jun He, Gaosheng Fang, Fang Li, Yuliang Liu

OE, Vol. 53, Issue 06, 066102, (June 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.6.066102

KEYWORDS: Fiber lasers, Backscatter, Sensors, Reflectivity, Phase shifts, Lead, Single mode fibers, Mirrors, Sensor networks, Fiber Bragg gratings

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Proceedings Article | 7 November 2012 Paper

High performance phase demodulator for interferometric optical fiber sensor using novel ameliorated PGC algorithm

Guoqing Wang, Tuanwei Xu, Fang Li

Proceedings Volume 8421, 84219W (2012) https://doi.org/10.1117/12.974949

KEYWORDS: Fiber optics sensors, Interferometry, Phase interferometry, Distortion, Demodulation, Phase shift keying, Phase shifts, Signal detection, Optical arrays, Modulation

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Proceedings Article | 17 May 2011 Paper

High performance wavelength demodulator for DFB fiber laser sensor using novel PGC algorithm and reference compensation method

Jun He, Fang Li, Wentao Zhang, Lin Wang, Tuanwei Xu, Yuliang Liu

Proceedings Volume 7753, 775333 (2011) https://doi.org/10.1117/12.885823

KEYWORDS: Sensors, Interferometers, Environmental sensing, Distortion, Phase shifts, Fiber lasers, Demodulation, Modulation, Neodymium, Michelson interferometers

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Proceedings Article | 31 August 2009 Paper

Stability of a distributed feedback fiber laser sensor array with unequal wavelength spacing

Tuan-wei Xu, Fang Li, Yue-feng Wu, Yu-liang Liu

Proceedings Volume 7382, 73823P (2009) https://doi.org/10.1117/12.834576

KEYWORDS: Sensors, Fiber lasers, Backscatter, Wavelength division multiplexing, Reflectivity, Multiplexing, Dense wavelength division multiplexing, Semiconductor lasers, Laser stabilization, Erbium

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Proceedings Article | 3 February 2009 Paper

Characteristics of frequency noise in a fiber laser sensor array

Tuanwei Xu, Fang Li, Yuliang Liu

Proceedings Volume 7157, 71571A (2009) https://doi.org/10.1117/12.810657

KEYWORDS: Fiber lasers, Sensors, Laser systems engineering, Ultraviolet radiation, Multiplexing, Wavelength division multiplexing, Demodulation, Lithium, Interferometers, Absorption

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Showing 5 of 20 publications

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