Prof. Heping Li Profile

Prof. Heping Li

at Univ of Electronic Science and Technology of China

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 21 December 2023 Paper

Dynamic range enhancement of photonic sampling based on chirp management in cavity-less optical pulse source

Fu Gao, Zhengkai Li, Zhiyao Zhang, Heping Li, Yong Liu

Proceedings Volume 12966, 1296612 (2023) https://doi.org/10.1117/12.3006386

KEYWORDS: Pulse signals, Education and training, Analog to digital converters, Dispersion, Ultrafast phenomena, Repetition frequency, Single mode fibers, Nyquist pulse, Microwave radiation, Photonics systems

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Proceedings Article | 15 December 2022 Paper

Effects of different interpolation methods on imaging quality of (SS-OCT) system

Xiao Liang, Heping Li, Pinghe Wang

Proceedings Volume 12478, 124780X (2022) https://doi.org/10.1117/12.2651726

KEYWORDS: Optical coherence tomography, Imaging systems, Image segmentation

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Proceedings Article | 21 January 2022 Paper

Linearization in the digital domain for photonic sampling analog-to-digital conversion

Weiqiang Lyu, Zhengkai Li, Zhenwei Fu, Shangjian Zhang, Zhiyao Zhang, Heping Li, Yong Liu

Proceedings Volume 12154, 1215414 (2022) https://doi.org/10.1117/12.2626208

KEYWORDS: Analog electronics, Signal processing, Signal to noise ratio, Signal attenuation, Modulation, Microwave radiation, Digital photography, Calibration, Nonlinear optics, Interference (communication), Microwave photonics

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Proceedings Article | 9 October 2021 Poster + Paper

Injection-locked optoelectronic oscillator based on frequency conversion filtering

Yuchong Su, Jiu Min, Zhen Zeng, Zhiyao Zhang, Heping Li, Yong Liu

Proceedings Volume 11894, 118940X (2021) https://doi.org/10.1117/12.2601325

KEYWORDS: Interference (communication), Microwave radiation, Optoelectronics, Oscillators, Single mode fibers, Frequency conversion, Phase measurement, Bandpass filters, Signal processing, Modulation

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Proceedings Article | 9 October 2021 Poster + Paper

LFM-Costas waveform generation based on a Fourier domain mode locking optoelectronic oscillator

Xiangrui Tian, Lingjie Zhang, Huan Tian, Zhiyao Zhang, Heping Li, Yong Liu

Proceedings Volume 11902, 1190218 (2021) https://doi.org/10.1117/12.2601394

KEYWORDS: Oscillators, Microwave radiation, Optoelectronics, Target detection, Ranging, Signal generators, Optical amplifiers, Mode locking, Phase modulation, Modulation

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Proceedings Article | 4 December 2020 Paper

Photonic time-stretch analog-to-digital conversion based on complementary parallel single-sideband modulation architecture

Rongting Jin, Yaowen Zhang, Di Peng, Zhiyao Zhang, Shangjian Zhang, Heping Li, Yong Liu

Proceedings Volume 11617, 116171V (2020) https://doi.org/10.1117/12.2585239

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Proceedings Article | 10 April 2020 Open Access

Effective segmentation method of target based on polarization-modulated 3D imaging system (Erratum)

Shengjie Wang, Bo Liu, Heping Li, Shenglin Lv

Proceedings Volume 11434, 114342M (2020) https://doi.org/10.1117/12.2572264

KEYWORDS: Image segmentation, Stereoscopy, Imaging systems, Optoelectronics, Electronics, Optical components, Lithium, Aerospace engineering, Precision measurement

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Proceedings Article | 12 March 2020 Paper

Effective segmentation method of target based on polarization-modulated 3D imaging system

Shengjie Wang, Bo Liu, Heping Li, Shenglin Lv

Proceedings Volume 11434, 114341M (2020) https://doi.org/10.1117/12.2557409

KEYWORDS: Clouds, Electron multiplying charge coupled devices, Stereoscopy, 3D acquisition, Cameras, Imaging systems, LIDAR, Detection and tracking algorithms

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Proceedings Article | 20 November 2019 Paper

Swept source polarization-sensitive OCT with fiber-based polarization-diversity detection unit

Yutong Wu, Heping Li, Pinghe Wang, Hongzhou Dong, Zhongping Chen

Proceedings Volume 11190, 1119026 (2019) https://doi.org/10.1117/12.2537287

KEYWORDS: Optical coherence tomography, Polarization, Signal processing, Beam splitters, Tissues, Signal to noise ratio, Calibration, Biomedical optics, Birefringence, Nerve

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Proceedings Article | 6 November 2018 Paper

Optical spectrum compression employing time-dependent filtering and its application in optical quantization based on soliton self-frequency shift

Xuyan Zhang, Zhiyao Zhang, Lingjie Zhang, Heping Li, Yong Liu

Proceedings Volume 10812, 108120C (2018) https://doi.org/10.1117/12.2500890

KEYWORDS: Quantization, Optical filters, Solitons, Polarization, Structured optical fibers, Nonlinear optics, Dispersion

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Proceedings Article | 24 July 2018 Paper

Direct generation of 62-fs pulses in an erbium-doped fiber laser

Junwen Li, Handing Xia, Wenxiong Du, Heping Li, Yong Liu

Proceedings Volume 10827, 108273T (2018) https://doi.org/10.1117/12.2500947

KEYWORDS: Picosecond phenomena, Polarization, Numerical simulations, Solitons, Pulsed laser operation, Optical simulations, Integrated optics

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Proceedings Article | 24 October 2017 Paper

Adaptive learning rate method based on Nesterov accelerated gradient

Zhenxing Xu, Ping Yang, Bing Xu, Heping Li

Proceedings Volume 10462, 104622R (2017) https://doi.org/10.1117/12.2284928

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Proceedings Article | 24 October 2017 Paper

Ultrafast pulse erbium-doped fiber laser with a graphene/WS2 heterostructure saturable absorber

Wenxiong Du, Heping Li, Cong Liu, Shengnan Shen, Changyong Lan, Chun Li, Yong Liu

Proceedings Volume 10457, 104571M (2017) https://doi.org/10.1117/12.2284368

KEYWORDS: Heterojunctions, Ultrafast phenomena, Fiber lasers, Graphene, Tungsten, Mode locking

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Proceedings Article | 24 October 2017 Paper

Simulation of dissipative-soliton-resonance generation in a passively mode-locked Yb-doped fiber laser

Wenxiong Du, Heping Li, Cong Liu, Shengnan Shen, Shangjian Zhang, Yong Liu

Proceedings Volume 10457, 104571L (2017) https://doi.org/10.1117/12.2284365

KEYWORDS: Optical simulations, Mode locking, Fiber lasers, Solitons

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Proceedings Article | 9 November 2016 Paper

Infrared pulsed fiber lasers employing 2D nanomaterials as saturable absorbers

Yong Liu, Heping Li, Jianfeng Li

Proceedings Volume 10017, 100170P (2016) https://doi.org/10.1117/12.2247594

KEYWORDS: Infrared radiation, Pulsed fiber lasers, Nanomaterials, Mode locking, Fiber lasers, Infrared lasers, Molybdenum, Tellurium, Bismuth, Q switched lasers

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Proceedings Article | 3 December 2014 Paper

Mid-infrared pulsed fiber lasers operating at 3um region

Yong Liu, Jianfeng Li, Luohong Yu, Zhiyao Zhang, Heping Li, Xiaojun Zhou

Proceedings Volume 9267, 92670P (2014) https://doi.org/10.1117/12.2073598

KEYWORDS: Fiber lasers, Q switched lasers, ZBLAN, Bragg cells, Mid-IR, Pulsed fiber lasers, Q switches, Q switching, Mirrors, Crystals

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Proceedings Article | 13 November 2014 Paper

160 GSa/s all-optical pulsed sampling with a single semiconductor optical amplifier

Shangjian Zhang, Heng Wang, Xinhai Zou, Yali Zhang, Heping Li, Yong Liu

Proceedings Volume 9279, 927909 (2014) https://doi.org/10.1117/12.2070842

KEYWORDS: Analog electronics, Polarization, Semiconductor optical amplifiers, Geometrical optics, Nonlinear optics, Modulation, Distortion, Lithium, Birefringence, Optical data conversion

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SPIE Journal Paper | 22 May 2013

Characteristics of dissipative solitons in an all-fiber thulium-doped fiber ring laser

Handing Xia, Heping Li, Xiaoxia Zhang, Shangjian Zhang, Xionggui Tang, Yong Liu

OE, Vol. 52, Issue 05, 054201, (May 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.5.054201

KEYWORDS: Fiber lasers, Picosecond phenomena, Solitons, Decision support systems, Dispersion, Mode locking, Pulsed laser operation, Polarization, Optical filters, Single mode fibers

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Proceedings Article | 29 November 2012 Paper

All-optical sampling based on semiconductor optical amplifiers towards high-speed optical analog-to-digital conversion

S. J. Zhang, Y. L. Zhang, S. Liu, H. P. Li, Y. Liu

Proceedings Volume 8552, 85520M (2012) https://doi.org/10.1117/12.999286

KEYWORDS: Polarization, Semiconductor optical amplifiers, Analog electronics, Distortion, Nonlinear optics, Modulation, All optical signal processing, Optical fibers, Optical clocks, Geometrical optics

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Proceedings Article | 17 November 2010 Paper

Different types of sideband generation in a passively mode-locked soliton fiber laser

H. P. Li, Z. Jing, H. D. Xia, J. K. Liao, X. G. Tang, R. G. Lu, Y. Z. Liu

Proceedings Volume 7843, 784328 (2010) https://doi.org/10.1117/12.871862

KEYWORDS: Solitons, Fiber lasers, Mode locking, Polarization, Dispersion, Pulsed laser operation, Optical simulations, Computer simulations, Oscilloscopes, Ultrafast phenomena

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Proceedings Article | 2 December 2009 Paper

Spectral compression of femtosecond pulses in photonic crystal fiber with anomalous dispersion

H. Li, X. Zhang, J. Liao, X. Tang, Y. Liu

Proceedings Volume 7630, 76301I (2009) https://doi.org/10.1117/12.852965

KEYWORDS: Dispersion, Femtosecond phenomena, Wave propagation, Photonic crystal fibers, Solitons, Ultrafast phenomena, Scanning probe microscopy, Pulsed laser operation, Computer simulations, Nonlinear crystals

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Proceedings Article | 25 November 2009 Paper

2x2 polymeric electro-optic MZI switch using multimode interference couplers

H. P. Li, J. K. Liao, X. G. Tang, R. G. Lu, Y. Z. Liu

Proceedings Volume 7509, 75090X (2009) https://doi.org/10.1117/12.837822

KEYWORDS: Switches, Waveguides, Brain-machine interfaces, Polymers, Electro optic polymers, Polymer multimode waveguides, Electrodes, Electro optics, Cladding, Beam propagation method

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Proceedings Article | 25 November 2009 Paper

Passively mode-locked femtosecond fiber laser using a SESAM

H. P. Li, X. L. Wu, D. S. Zhao, J. K. Liao, Y. Liu, Y. Z. Liu

Proceedings Volume 7509, 75090K (2009) https://doi.org/10.1117/12.838171

KEYWORDS: Mode locking, Fiber lasers, Pulsed laser operation, Picosecond phenomena, Ultrafast phenomena, Polarization, Solitons, Femtosecond fiber lasers, Continuous wave operation, Dispersion

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Proceedings Article | 8 January 2008 Paper

All-optical high-speed sampling based on nonlinear polarization rotation in a semiconductor optical amplifier

Q. S. Zhang, S. J. Zhang, L. Huang, X. G. Tang, H. P. Li, Y. Liu, Y. Z. Liu

Proceedings Volume 6838, 68381L (2008) https://doi.org/10.1117/12.755206

KEYWORDS: Polarization, Nonlinear optics, Semiconductor optical amplifiers, Signal processing, Ultrafast phenomena, Optical clocks, 3D modeling, Broadband telecommunications, Numerical simulations, Analog electronics

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Proceedings Article | 19 November 2007 Paper

Simulation for effect of process parameters on surface profile in thick film photolithography

Xionggui Tang, Heping Li, Jingkun Liao, Yongzhi Liu, Yongkang Guo

Proceedings Volume 6724, 67240T (2007) https://doi.org/10.1117/12.782692

KEYWORDS: Lithography, Photoresist developing, Photoresist materials, Refractive index, Absorption, Optical lithography, Lithographic illumination, Picture Archiving and Communication System, Thin films, Photomasks

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Proceedings Article | 9 October 2000 Paper

Femtosecond Z-scan measurements of nonlinear refraction in second-harmonic-generation crystals

He Ping Li, Chan Hin Kam, Yee Loy Lam, Wei Ji

Proceedings Volume 4221, (2000) https://doi.org/10.1117/12.402582

KEYWORDS: Crystals, Nonlinear crystals, Ferroelectric materials, Second-harmonic generation, Refraction, Absorption, Femtosecond phenomena, Laser crystals, Refractive index, Nonlinear optics

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Proceedings Article | 3 October 2000 Paper

Waveguide properties of TiO2/ORMOSIL composite thin films prepared by sol-gel processing on III-V compound semiconductor substrates

Wenxiu Que, Yee Loy Lam, Yuen Chuen Chan, Kantisara Pita, Ji Zhou, He Ping Li, Jian Liu, B.K. Law, C.E. Ho, Chan Hin Kam

Proceedings Volume 4220, (2000) https://doi.org/10.1117/12.401680

KEYWORDS: Waveguides, Composites, Sol-gels, Thin films, Compound semiconductors, Fabrication, Etching, Gallium arsenide, Refractive index, Planar waveguides

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Proceedings Article | 12 November 1999 Paper

TiO2/SiO2/ORMOSIL hybrid material planar waveguides prepared at low-temperature by sol-gel processing

Wenxiu Que, Yan Zhou, Yee Loy Lam, Yuen Chuen Chan, Shi De Cheng, He Ping Li, Jian Liu, Chan Hin Kam

Proceedings Volume 3896, (1999) https://doi.org/10.1117/12.370345

KEYWORDS: Sol-gels, Heat treatments, Planar waveguides, Glasses, Waveguides, Refractive index, Temperature metrology, Ellipsometry, Composites, Absorption

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Proceedings Article | 9 November 1999 Paper

Optical nonlinearity of surface-modified PbS and CdxPb1-xS nanoparticles in the femtosecond regime

He Ping Li, B. Liu, Chan Hin Kam, Yee Loy Lam, Wenxiu Que, L. Gan, C. Chew, G. Q. Xu

Proceedings Volume 3899, (1999) https://doi.org/10.1117/12.369423

KEYWORDS: Nanoparticles, Lead, Absorption, Nonlinear optics, Femtosecond phenomena, Refractive index, Semiconductors, Phase shifts, Transmittance, Zinc

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Proceedings Article | 3 October 1996 Paper

Picosecond z-scan investigation of two-photon absorption and bound electronic self-focusing in second-harmonic generation crystals

Wei Ji, He Ping Li, Feng Zhou, N. Zhai

Proceedings Volume 2897, (1996) https://doi.org/10.1117/12.252923

KEYWORDS: Crystals, Absorption, Ferroelectric materials, Laser crystals, Second-harmonic generation, Picosecond phenomena, Nonlinear crystals, Refraction, Nonlinear optics, Solids

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Showing 5 of 30 publications

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