Dr. Weicheng Chen Profile

Dr. Weicheng Chen

at Foshan Univ

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 24 November 2023 Paper

Real-time reproduction of mode-locked pulse generation via high-speed spectrum matching algorithm

Jingxuan Sun, Yiqing Shu, Weicheng Chen

Proceedings Volume 12935, 1293527 (2023) https://doi.org/10.1117/12.3007565

KEYWORDS: Mode locking, Detection and tracking algorithms, Fiber lasers, Databases, Evolutionary algorithms, Polarization, Automatic control, Control systems, Ultrafast phenomena, Statistical analysis

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Proceedings Article | 24 November 2023 Paper

Interference-induced noise-like soliton molecules in a fiber laser

Zhen Liu, Jingxuan Sun, Yiqing Shu, Aiping Luo, Weicheng Chen

Proceedings Volume 12935, 1293526 (2023) https://doi.org/10.1117/12.3007564

KEYWORDS: Autocorrelation, Picosecond phenomena, Fiber lasers, Solitons, Physical coherence, Molecules, Molecular lasers, Mode locking, Samarium, Optoelectronics

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Proceedings Article | 24 November 2021 Paper

Cascaded generation of Raman solitons at 1800 nm and 2000 nm in an Erbium-doped fiber laser

Zhengwei Cui, Lin Gu, Mengxian Li, Weicheng Chen

Proceedings Volume 12060, 120600J (2021) https://doi.org/10.1117/12.2605407

KEYWORDS: Raman spectroscopy, Solitons, Fiber lasers, Optical filters, Tunable filters, Tunable lasers

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Proceedings Article | 24 November 2021 Paper

Dual-wavelength pulse superposition states in a fiber laser

Lin Gu, Mengxian Li, Zhengwei Cui, Weicheng Chen

Proceedings Volume 12060, 1206009 (2021) https://doi.org/10.1117/12.2603824

KEYWORDS: Fiber lasers, Optical filters, Solitons, Picosecond phenomena, Mode locking, Ultrafast phenomena

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Proceedings Article | 24 December 2020 Paper

Microcavity structure based OCT fiber probe with controllable focal length

Chong-ke Ji, Shuai Gao, Qiuyi Ning, Weicheng Chen

Proceedings Volume 11608, 116080C (2020) https://doi.org/10.1117/12.2587410

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Proceedings Article | 14 February 2019 Paper

Mach-Zehnder interferometer based on core-offset splicing technique for sensing applications

Shuai Gao, Chongke Ji, Qiuyi Ning, Weicheng Chen, Jianqing Li

Proceedings Volume 11048, 1104824 (2019) https://doi.org/10.1117/12.2522899

KEYWORDS: Refractive index, Sensors, Cladding, Mach-Zehnder interferometers, Silica, Optical fibers, Biosensing, Temperature metrology, Single mode fibers, Interferometers

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Proceedings Article | 24 October 2017 Paper

Complex soliton bunching patterns induced by nonsaturable absorption

Weicheng Chen, Aiping Luo

Proceedings Volume 10457, 104570C (2017) https://doi.org/10.1117/12.2282184

KEYWORDS: Solitons

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Proceedings Article | 11 November 2008 Paper

A novel 80 km dispersion-compensation 8x100GHz comb-equalizer for fiber optical parametric amplifier

Hui Cao, Guojie Chen, Weicheng Chen, Junqiang Sun, Dexiu Huang

Proceedings Volume 7134, 71341T (2008) https://doi.org/10.1117/12.804327

KEYWORDS: Fiber amplifiers, Fiber optics, Optical amplifiers, Fiber Bragg gratings, Reflectivity, Inverse scattering, Optical filters, Solids, Optoelectronics, Wavelength division multiplexing

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Proceedings Article | 14 January 2008 Paper

Experimental demonstration of widely tunable wavelength conversion between ps-pulses based on four-wave mixing in cascaded highly nonlinear fiber

Hui Cao, Junqiang Sun, Weicheng Chen, Dexiu Huang

Proceedings Volume 6781, 678103 (2008) https://doi.org/10.1117/12.741997

KEYWORDS: Continuous wave operation, Four wave mixing, Laser sources, Tunable lasers, Nonlinear optics, Optoelectronics, Picosecond phenomena, Dense wavelength division multiplexing, Optical networks, Data conversion

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Proceedings Article | 26 November 2007 Paper

Higher-order effects on self-similar parabolic pulse evolution in microstructured fiber amplifier

Weici Liu, Wencheng Xu, Jie Feng, Weicheng Chen, Shuxian Li, Songhao Liu

Proceedings Volume 6783, 67834O (2007) https://doi.org/10.1117/12.743314

KEYWORDS: Fiber amplifiers, Dispersion, Wave propagation, Fiber lasers, Optical fibers, Laser systems engineering, Distortion, Structured optical fibers, Raman spectroscopy, Picosecond phenomena

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Proceedings Article | 21 November 2007 Paper

Multiple polarization states of vector soliton in fiber laser

Weicheng Chen, Wencheng Xu, Hui Cao, Dingan Han

Proceedings Volume 6781, 67813Q (2007) https://doi.org/10.1117/12.741959

KEYWORDS: Polarization, Solitons, Modulation, Mode locking, Fiber lasers, Laser resonators, Polarizers, Oscilloscopes, Pulsed laser operation, Birefringence

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Proceedings Article | 10 January 2005 Paper

On design of a novel dispersionless comb gain equalizer for fiber optical parametric amplifier

Hui Cao, Junqiang Sun, Guojie Chen, Weicheng Chen, Dexiu Huang

Proceedings Volume 5623, (2005) https://doi.org/10.1117/12.574049

KEYWORDS: Reflectivity, Optical amplifiers, Fiber amplifiers, Fiber optics, Fiber Bragg gratings, Linear filtering, Optical filters, Wavelength division multiplexing, Inverse scattering, Optical design

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A novel superstructure fiber Bragg grating (SFBG) based comb gain equalizer for fiber optical parametric amplifier (OPA) is proposed. This gain equalizer is characterized by its comb reflectivity spectrum. It can have two functions at least, one is flattening the gain in multi ITU-T regulated channels, the other is it can be used as multi-channel isolation filters taking full advantage of its comb reflectivity spectrum. In addition it can be dispersionless or have dispersion compensation function. A one-bump fiber OPA, 30dB bandwidth >15nm, is designed with one of its peak gains (41dB) located at the center of work wavelengths in a 16-channel 100GHz spaced WDM optical transmission system according to corresponding Chinese criterion (1548.51nm~ 1560.61nm). The object reflectivity spectra of gain equalizer are calculated in two parts independently. Inner channel part for every channel is designed according to the gain spectrum of fiber OPA. As a comb filter, its inter-channel part reflectivities are the smaller the better. But inter-channel part reflectivities can not be simply zeroed, for which would result in the rising and descending edges of reflectivity spectrum being too sharp to be performed by any filter. To split the difference, inter-channel part reflectivities are calculated with Gaussian hypergeometric function (-0.5dB bandwidth 0.1nm, -45dB bandwidth 0.3nm) to obtain slower rising and descending edges than the simply zeroed case, which is very necessary and important to be sure the object reflectivity spectrum not only has sharp enough edges to take the shape of comb but also is physically realizable. Adopting channel-by-channel windowing method to apodize the object reflectivity spectrum, a superstructure fiber Bragg grating is designed with lay-peeling inverse scattering technique. At last, according to the coupling coefficient calculated, reflection spectrum and group time delay are analyzed based on the method of transformation matrix. Calculation results show that this SFBG satisfies all requirements. Further calculation results show that, using this SFBG as comb gain equalizer, the gain of fiber OPA is flattened in every channel to within ±0.4dB among 16 channels, with channel isolation high up to -35dB. It needs to point out that this method can also be used to design gain equalizer for other optical amplifiers.

Proceedings Article | 10 January 2005 Paper

Synthesis of superstructure fiber Bragg grating comb filter by ameliorated layer-peeling algorithm

Hui Cao, Junqiang Sun, Guojie Chen, Weicheng Chen, Dexiu Huang

Proceedings Volume 5623, (2005) https://doi.org/10.1117/12.574090

KEYWORDS: Reflectivity, Linear filtering, Fiber Bragg gratings, Digital Light Processing, Optical design, Solids, Modulation, Sun, Optical filters, Structured optical fibers

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Showing 5 of 13 publications

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