Dr. Hui Cao Profile

Dr. Hui Cao

at Foshan Univ

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Author

Publications (12)

Proceedings Article | 28 February 2017 Paper

Fourier modal method for two-dimensional wavefront reconstruction

Peiying Liang, Jianping Ding, Jianpei Xia, Yuhua Huang, Hui Cao

Proceedings Volume 10256, 1025642 (2017) https://doi.org/10.1117/12.2257884

KEYWORDS: Wavefront reconstruction, Phase measurement, Interferometry, Fourier transforms, Wavefronts, Analog electronics, Numerical simulations, Computer simulations

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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 | 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 | 9 June 2006 Paper

Bicubic uniform B-spline wavefront fitting technology applied in computer-generated holograms

Hui Cao, Jun-qiang Sun, Guo-jie Chen

Proceedings Volume 6149, 61491A (2006) https://doi.org/10.1117/12.674234

KEYWORDS: Wavefronts, Computer generated holography, Holograms, Heads up displays, Optical signal processing, Zernike polynomials, Diffraction gratings, Mirrors, Optical components, Computer programming

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Proceedings Article | 3 December 2005 Paper

Theoretical study on the signal pulse splitting phenomenon in continuous wave pumped fiber optical parametric amplifier

Hui Cao, Junqiang Sun, Deixiu Huang

Proceedings Volume 6019, 601930 (2005) https://doi.org/10.1117/12.633558

KEYWORDS: Fiber amplifiers, Optical amplifiers, Fiber optics, Artificial intelligence, Picosecond phenomena, Signal processing, Four wave mixing, Gaussian pulse, Numerical simulations, Nonlinear optics

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Proceedings Article | 3 December 2005 Paper

Unique dispersion effects on transmitting and amplifying of picosecond pulses in fiber optical parametric amplifiers

Hui Cao, Junqiang Sun, Deixiu Huang

Proceedings Volume 6019, 601931 (2005) https://doi.org/10.1117/12.633564

KEYWORDS: Picosecond phenomena, Dispersion, Fiber optics, Fiber amplifiers, Optical amplifiers, Artificial intelligence, Signal processing, Solids, Four wave mixing, Continuous wave operation

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Proceedings Article | 11 February 2005 Paper

Recovery of the effect of the third-order dispersion and Raman self-frequency shift on polarization modes of optical pulses in birefringent fibers using temporal and spectral optical phase conjugation

Weicheng Chen, Wencheng Xu, Jianing Xie, Hong Lu, Hui Cao

Proceedings Volume 5625, (2005) https://doi.org/10.1117/12.574681

KEYWORDS: Polarization, Optical fibers, Received signal strength, Solitons, Phase conjugation, Optical proximity correction, Raman spectroscopy, Dispersion, Distortion, Nonlinear optics

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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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Proceedings Article | 12 May 2004 Paper

Analytical expressions for saturated signal gain and output power of fiber optical parametric amplifiers

Cao Hui, Junqiang Sun, Guojie Chen, Dexiu Huang

Proceedings Volume 5280, (2004) https://doi.org/10.1117/12.521631

KEYWORDS: Fiber amplifiers, Optical amplifiers, Fiber optics, Nonlinear optics, Numerical integration, Picosecond phenomena, Signal analyzers, Optoelectronics, Physics, Numerical analysis

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Proceedings Article | 30 April 2004 Paper

Enhanced transmission stability of optical pulses in birefringent fibers with an optical phase conjugator

Weicheng Chen, Wencheng Xu, Hong Lu, Jianing Xie, Hui Cao

Proceedings Volume 5279, (2004) https://doi.org/10.1117/12.521462

KEYWORDS: Polarization, Optical proximity correction, Optical fibers, Solitons, Birefringence, Phase shift keying, Dispersion, Modulation, Scanning probe microscopy, Clocks

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Showing 5 of 12 publications

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