Dr. Wenchang Lai Profile

Dr. Wenchang Lai

at National Univ of Defense Technology

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Author

Publications (14)

Proceedings Article | 13 December 2024 Paper

Single-pixel imaging based on a Fermat spiral laser array and an untrained neural network

Qingyuan Li, Guozhong Lei, Wenchang Lai, Kai Han

Proceedings Volume 13501, 135010I (2024) https://doi.org/10.1117/12.3048157

KEYWORDS: Neural networks, Imaging arrays, Image restoration, Reconstruction algorithms, Light sources and illumination, Image processing, Imaging systems, Spatial light modulators, Sensors, Remote sensing

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Proceedings Article | 13 December 2024 Paper

100 fps single-pixel imaging using Fermat spiral fiber laser array

Haolong Jia, Guozhong Lei, Wenchang Lai, Wenhui Wang, Yan Wang, Wenda Cui, Kai Han

Proceedings Volume 13501, 1350108 (2024) https://doi.org/10.1117/12.3047200

KEYWORDS: Light sources and illumination, Fiber lasers, Light sources, Imaging arrays, Image restoration, Image quality, Sampling rates, Reconstruction algorithms, Modulation, Imaging systems

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Proceedings Article | 4 December 2024 Paper

High-quality single-pixel imaging via untrained attention network at a low sampling ratio

Guozhong Lei, Wenchang Lai, Haolong Jia, Wenhui Wang, Yan Wang, Hao Liu, Wenda Cui, Kai Han

Proceedings Volume 13283, 132832N (2024) https://doi.org/10.1117/12.3036866

KEYWORDS: Image quality, Image restoration, Signal detection, Digital micromirror devices, Reconstruction algorithms, Feature extraction, Numerical simulations, Network architectures, Sensors, Image resolution

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Proceedings Article | 27 September 2024 Paper

Passive non-line-of-sight imaging for hidden target detection

Hailu Wang, Minsun Chen, Hao Liu, Wenchang Lai, Guozhong Lei, Kai Han

Proceedings Volume 13282, 132820R (2024) https://doi.org/10.1117/12.3049350

KEYWORDS: Non line of sight propagation, Target detection, Image restoration, Object detection, Long wavelength infrared, Relays, Deep learning, Gallium nitride, Cameras, Sensors

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Proceedings Article | 12 April 2023 Paper

Single-pixel imaging by using Zernike patterns illumination

Wenchang Lai, Qi Meng, Guozhong Lei, Yan Wang, Wenda Cui, Kai Han

Proceedings Volume 12565, 125652F (2023) https://doi.org/10.1117/12.2662651

KEYWORDS: Zernike polynomials, Sensors, Modulation, Image quality, Imaging systems, Spatial light modulators, Reconstruction algorithms, Imaging arrays, Image compression, Digital micromirror devices

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Proceedings Article | 4 March 2022 Presentation + Paper

High power, narrow linewidth all-fiber amplifiers

Pu Zhou, Pengfei Ma, Wei Liu, Hu Xiao, Shuai Ren, Jiaxin Song, Jiangming Xu, Yisha Chen, Wenchang Lai

Proceedings Volume 11981, 119810P (2022) https://doi.org/10.1117/12.2614414

KEYWORDS: Fiber lasers, Amplifiers, Fiber amplifiers, Optical amplifiers, High power fiber amplifiers, Raman spectroscopy, Raman scattering, Scattering, Scanning probe microscopy, Nonlinear optics

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Proceedings Article | 4 March 2022 Presentation

Evolution of relative intensity noise and beam pointing error in high-power single-frequency fiber amplifiers

Pengfei Ma, Wei Liu, Wei Li, Wenchang Lai, Shuai Ren, Pu Zhou

Proceedings Volume PC11981, PC119810G (2022) https://doi.org/10.1117/12.2614733

KEYWORDS: Fiber amplifiers, Fiber lasers, Superposition, Interference (communication)

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Proceedings Article | 4 March 2022 Presentation

Kilowatt-level, narrow linewidth, polarization-maintained fiber amplifier based MPCS modulation and laser gain competition

Wenchang Lai, Pengfei Ma, Jiaxin Song, Shuai Ren, Wei Liu, Pu Zhou

Proceedings Volume PC11981, PC119810H (2022) https://doi.org/10.1117/12.2614248

KEYWORDS: Modulation, Fiber amplifiers, Fiber lasers, Amplifiers, Quality measurement, Polarization, Optical testing, Interference (communication), Beam quality measurement

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Proceedings Article | 4 March 2022 Presentation

3 kW linearly polarized all-fiberized superfluorescent fiber source

Shuai Ren, Guangjian Wang, Jiaxin Song, Wenchang Lai, Wei Liu, Pengfei Ma, Pu Zhou

Proceedings Volume PC11981, PC119810I (2022) https://doi.org/10.1117/12.2615317

KEYWORDS: Polarization, Stochastic processes, Oscillators, Optical sensors, Optical coherence tomography, Optical amplifiers, Laser sources, Interferometry, High power fiber amplifiers

Proceedings Article | 12 March 2021 Paper

Narrow linewidth Yb-Raman fiber amplifier pumped by a random fiber laser

Jiaxin Song, Wenchang Lai, Wei Liu, Pengfei Ma, Hu Xiao, Pu Zhou

Proceedings Volume 11763, 1176358 (2021) https://doi.org/10.1117/12.2587226

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Proceedings Article | 2 December 2020 Paper

Effects of seed filtering in a narrow line-width Yb-Raman fiber amplifier

Jiaxin Song, Wenchang Lai, Wei Liu, Pengfei Ma, Pu Zhou

Proceedings Volume 11717, 117173N (2020) https://doi.org/10.1117/12.2587683

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Proceedings Article | 29 March 2019 Paper

SBS suppression in high brightness, all-fiberized and linearly polarized amplifiers by rectangular spectrum

Daren Meng, Pengfei Ma, Xubao He, Wenchang Lai, Rongtao Su, Yanxing Ma, Pu Zhou, Lijia Yang

Proceedings Volume 11046, 1104605 (2019) https://doi.org/10.1117/12.2523633

KEYWORDS: Fiber amplifiers, Phase modulation, Modulation, Modulators, Optical amplifiers, Polarization, Amplifiers, Laser applications, Laser scattering, Scattering

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Proceedings Article | 12 December 2018 Paper

A new design for indirectly measuring laser power with improved performance

WenChang Lai, Pu Zhou

Proceedings Volume 10844, 1084412 (2018) https://doi.org/10.1117/12.2505606

KEYWORDS: Mirrors, Reflectivity, Diffraction, Power meters, Absorption, Measurement devices, Laser applications, Temperature metrology, Thermal effects, Calibration

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Proceedings Article | 5 March 2018 Paper

Review on recent research progress on laser power measurement based on light pressure

WenChang Lai, Pu Zhou

Proceedings Volume 10710, 1071049 (2018) https://doi.org/10.1117/12.2317677

KEYWORDS: Mirrors, Optical testing, Power meters, Laser processing, Reflectivity, Sensors, Temperature metrology

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Showing 5 of 14 publications

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