Dr. Jun Xu Profile

Dr. Jun Xu

at Univ of Science and Technology of China

SPIE Involvement:

Author

Publications (8)

Proceedings Article | 23 December 2013 Paper

An automatic mode-locked system for passively mode-locked fiber laser

Sha Li, Jun Xu, Guoliang Chen, Li Mei, Bo Yi

Proceedings Volume 9043, 904313 (2013) https://doi.org/10.1117/12.2037523

KEYWORDS: Mode locking, Fiber lasers, Polarization, Signal processing, LCDs, Transform theory, Laser systems engineering, Optical amplifiers, Interference (communication), Optical fibers

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SPIE Journal Paper | 1 July 2010

Real-time range imaging system based on a light-emitting diode array phase-shift range finder for fast three-dimensional shape acquisition

Huanqin Wang, Jun Xu, Deyong He, Tianpeng Zhao, Hai Ming, Deyi Kong

OE, Vol. 49, Issue 07, 073201, (July 2010) https://doi.org/10.1117/12.10.1117/1.3462033

KEYWORDS: Imaging systems, Range imaging, Light emitting diodes, Signal to noise ratio, Receivers, Distance measurement, Phase measurement, Image resolution, Phase shifts, 3D image processing

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Proceedings Article | 8 January 2008 Paper

Study on a small modulation and high precision laser range finder using the self-mixing effect in a single-mode VCSEL

Huanqin Wang, Tianpeng Zhao, Jun Xu, Deyong He, Jiwen Yang

Proceedings Volume 6838, 68381M (2008) https://doi.org/10.1117/12.755724

KEYWORDS: Modulation, Vertical cavity surface emitting lasers, Signal processing, Ranging, Laser range finders, Phase shift keying, Digital signal processing, Analog electronics, Distortion, Complex systems

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Proceedings Article | 17 January 2005 Paper

New laser Doppler velocimetry using self-mixing effect in a vertical-cavity surface-emitting laser modulated by triangular current

Huaqiao Gui, Liang Lv, Jun Xu, Deyong He, Feng Li, Anting Wang, Jianping Xie, Tianpeng Zhao, Hai Ming

Proceedings Volume 5644, (2005) https://doi.org/10.1117/12.572226

KEYWORDS: Laser Doppler velocimetry, Vertical cavity surface emitting lasers, Modulation, Velocity measurements, Frequency modulation, Doppler effect, Photography, Semiconductor lasers, Laser optics, Distance measurement

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Proceedings Article | 17 January 2005 Paper

Theoretical and numerical analysis of polarization properties used as Doppler velocimetry in vertical-cavity surface-emitting lasers

Liang Lv, Huaqiao Gui, Tianpeng Zhao, Jun Xu, Deyong He, Anting Wang, XiYao Chen, Feng Li, Hai Ming, Jianping Xie

Proceedings Volume 5644, (2005) https://doi.org/10.1117/12.572221

KEYWORDS: Polarization, Vertical cavity surface emitting lasers, Doppler effect, Semiconductor lasers, Numerical analysis, Velocimetry, Interferometers, Laser resonators, Laser Doppler velocimetry, Reflectors

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Proceedings Article | 17 January 2005 Paper

The direction discrimination of single-mode VCSEL self-mixing laser Doppler velocimeters using automatic tracking triangular wave modulation

Deyong He, Jun Xu, Huaqiao Gui, Liang Lv, Tianpeng Zhao, Hai Ming, Jianping Xie

Proceedings Volume 5644, (2005) https://doi.org/10.1117/12.573267

KEYWORDS: Vertical cavity surface emitting lasers, Modulation, Doppler effect, Laser Doppler velocimetry, Automatic tracking, Velocity measurements, Semiconductor lasers, Wave propagation, Laser applications, Reliability

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Proceedings Article | 17 January 2005 Paper

Improving SNR of Doppler signal and expanding dynamic measurement range of single-mode VCSEL self-mixing laser Doppler velocimetry

Jun Xu, Deyong He, Liang Lv, Huaqiao Gui, Tianpeng Zhao, Hai Ming, Jianping Xie

Proceedings Volume 5644, (2005) https://doi.org/10.1117/12.573336

KEYWORDS: Velocity measurements, Vertical cavity surface emitting lasers, Doppler effect, Laser Doppler velocimetry, Analog electronics, Signal to noise ratio, Amplitude modulation, Semiconductor lasers, Temperature metrology, Speckle pattern

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Proceedings Article | 5 September 2002 Paper

Precise design of the pure phase element for quasi-annular beam shaping

Yuan Wu, Junzhong Xu, Yiqiong Zhao, Shaojun Fu, Yongping Li

Proceedings Volume 4914, (2002) https://doi.org/10.1117/12.481754

KEYWORDS: Personal protective equipment, Beam shaping, Algorithm development, Optimization (mathematics), Fusion energy, Staring arrays, High power lasers, Fourier transforms, Digital filtering, Diffraction

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Showing 5 of 8 publications

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