Prof. Dongfang Jia Profile

Prof. Dongfang Jia

at Tianjin Univ

SPIE Involvement:

Author

Publications (38)

Proceedings Article | 11 March 2024 Poster + Paper

FMCW light source with a feedback optical phase-locked loop

Yuyao Zeng, Tianxin Yang, Chenyue Zhang, Jiewei Yang, Jiakang Li, Zhaoying Wang, Dongfang Jia, Chunfeng Ge

Proceedings Volume 12885, 1288511 (2024) https://doi.org/10.1117/12.3001264

KEYWORDS: Laser frequency, Light sources, Modulation frequency, Modulation, LIDAR, Feedback loops, Photodetectors

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Proceedings Article | 11 March 2024 Poster + Paper

Stable single-mode multiwavelength optical fiber laser

Chenyue Zhang, Tianxin Yang, Yuyao Zeng, Jiewei Yang, Jiakang Li, Zhaoying Wang, Dongfang Jia, Chunfeng Ge

Proceedings Volume 12885, 1288510 (2024) https://doi.org/10.1117/12.3001245

KEYWORDS: Fiber lasers, Fabry Perot interferometers, Optical filters, Laser frequency, Optical fibers, Laser optics, Ring lasers, Polarization, Spectrum analysis

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Proceedings Article | 11 March 2024 Presentation + Paper

Generation of Nyquist pulse sequences using dual parallel Mach-Zehnder modulator and phase modulator

Jiakang Li, Yusheng Yao, Dongfang Jia, Chunfeng Ge, Zhaoying Wang, Tianxin Yang

Proceedings Volume 12885, 128850K (2024) https://doi.org/10.1117/12.3002164

KEYWORDS: Nyquist pulse, Modulators, Pulse signals, Phase modulation, Autocorrelation, Picosecond phenomena, Modulation frequency

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Proceedings Article | 11 March 2024 Paper

High sweeping linearity and optical intensity control of broadband FMCW laser source generation for 4D imaging LiDAR

Jiewei Yang, Tianxin Yang, Yuyao Zeng, Chenyue Zhang, Zhaoying Wang, Dongfang Jia, Chunfeng Ge

Proceedings Volume 12885, 128850S (2024) https://doi.org/10.1117/12.3000284

KEYWORDS: Laser frequency, Modulation, Ranging, Light sources, LIDAR, Laser sources, Modulation frequency, Optical amplifiers, Signal intensity, Time-frequency analysis

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Proceedings Article | 5 March 2021 Presentation + Paper

Tunable multi-channel optical true time delay using frequency interval tunable multiwavelength light source

Long Zhang, Zhaoying Wang, Lai Wen, Quan Yuan, Tianxin Yang, Chunfeng Ge, Dongfang Jia

Proceedings Volume 11685, 116851J (2021) https://doi.org/10.1117/12.2588253

KEYWORDS: Light sources, Radar, Picosecond phenomena, Modulation, Radio optics, Modulators, Four wave mixing, Computer programming

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Proceedings Article | 2 March 2020 Paper

The nonlinear tuning technique of a DFB laser using frequency predistortion procedures

Peng Li, Tianxin Yang, Jiewei Yang, Zhaoying Wang, Dongfang Jia, Chunfeng Ge

Proceedings Volume 11279, 1127922 (2020) https://doi.org/10.1117/12.2550966

KEYWORDS: Frequency modulation, LIDAR, Modulation, Laser applications, Field programmable gate arrays, Optical simulations, Complex systems, Ranging, Light sources, Semiconductor lasers

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Proceedings Article | 2 March 2020 Presentation + Paper

The principle of measuring instantaneous frequent and dynamic linewidth of frequency swept lightwaves

Tianxin Yang, Jiewei Yang, Peng Li, Zhaoying Wang, Dongfang Jia, Chunfeng Ge

Proceedings Volume 11279, 112791B (2020) https://doi.org/10.1117/12.2550454

KEYWORDS: Light sources, LIDAR, Fiber lasers, Continuous wave operation, Mode locking, Semiconductor lasers, Modulators, Frequency combs, Teeth, Terahertz radiation

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Proceedings Article | 9 November 2018 Paper

Optical frequency comb generation with widely and precisely tunable frequency space

Zhenkun Jiang, Zhaoying Wang, Quan Yuan, Cheng Guo, Taoran Xie, Chunfeng Ge, Dongfang Jia

Proceedings Volume 10825, 1082512 (2018) https://doi.org/10.1117/12.2327122

KEYWORDS: Modulators, Frequency combs, Mode locking, Phase shifts, Optical fibers, Modulation, Optical amplifiers, Optical communications, Resonators, Four wave mixing

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Proceedings Article | 9 November 2018 Paper

Numerical simulation and experimental studies on soliton self-frequency shift in single-mode optical fiber

Defei Kong, Dongfang Jia, Dejun Feng, Chunfeng Ge, Zhaoying Wang, Tianxin Yang

Proceedings Volume 10825, 1082511 (2018) https://doi.org/10.1117/12.2327107

KEYWORDS: Solitons, Dispersion, Optical fibers, Single mode fibers, Nonlinear optics, Numerical simulations, Picosecond phenomena, Raman spectroscopy, Optical solitons, Pulsed laser operation

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Proceedings Article | 5 November 2018 Paper

Nanoseconds square pulses generation in a figure-of-eight Yb-doped fiber laser

Xu Sun, Zihao Li, Yiting Jin, Yetao Chen, Yifan Bao, Lifan Zhong, Yinan Ji, Dongfang Jia

Proceedings Volume 10811, 108110W (2018) https://doi.org/10.1117/12.2326836

KEYWORDS: Mode locking, Fiber lasers, Single mode fibers, Polarization, Solitons, Pulsed laser operation, Nonlinear optics

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Proceedings Article | 23 October 2018 Paper

A fiber Bragg grating dynamic stress sensing interrogation system with high interrogation rate

Taoran Xie, Zhaoying Wang, Quan Yuan, Zhenkun Jiang, Chunfeng Ge, Dongfang Jia

Proceedings Volume 10821, 1082114 (2018) https://doi.org/10.1117/12.2327106

KEYWORDS: Fiber Bragg gratings, Sensing systems, Ferroelectric materials, Sensors, Modulators, Single sideband modulation, Fiber lasers, Optical amplifiers, Laser optics, Signal detection

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Proceedings Article | 23 October 2018 Paper

Synchronous interrogation of multiple FBG sensors using multi-wavelength parallel swept light source

Diannan Hu, Zhaoying Wang, Quan Yuan, Taoran Xie, Dongfang Jia

Proceedings Volume 10821, 1082115 (2018) https://doi.org/10.1117/12.2327121

KEYWORDS: Fiber Bragg gratings, Sensors, Light sources, Signal detection, Multiplexing, Single sideband modulation, Modulators, Optical amplifiers

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Proceedings Article | 24 July 2018 Paper

Study on all-optical 2R regeneration at 40 Gbit/s based on SPM

Defei Kong, Dongfang Jia, Dejun Feng, Chunfeng Ge, Zhaoying Wang, Tianxin Yang, Da Xing

Proceedings Volume 10827, 108272G (2018) https://doi.org/10.1117/12.2326826

KEYWORDS: Optical filters, Optical amplifiers, Bandpass filters, Fiber optic communications, Nonlinear optics, Nonlinear filtering, Signal to noise ratio

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Proceedings Article | 5 March 2018 Paper

Accurate measurement and generation of linearly chirped optical waves over broad frequency ranges

Zhaoyu Lu, Tianxin Yang, Cheng Guo, Haihao Dong, Peng Li, Dongfang Jia, Chunfeng Ge

Proceedings Volume 10531, 105310V (2018) https://doi.org/10.1117/12.2302463

KEYWORDS: Modulators, Single sideband modulation, Modulation, Bragg cells, Optical amplifiers, Wavelength division multiplexing, Light sources, Optical circuits, Semiconductor lasers, Polarization

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Proceedings Article | 5 March 2018 Paper

Generation of optical Nyquist pulses with pre-programmed rectangular-shape spectrum

Cheng Guo, Tianxin Yang, Zhaoyu Lu, Chunfeng Ge, Zhaoying Wang, Dongfang Jia

Proceedings Volume 10531, 105310X (2018) https://doi.org/10.1117/12.2295765

KEYWORDS: Modulators, Nyquist pulse, Modulation, Optical amplifiers, Optical filters, Polarization, Orthogonal frequency division multiplexing, Time division multiplexing, Logic, Wavelength division multiplexing

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Proceedings Article | 30 March 2017 Paper

Generations of linear frequency modulation continuous

Tianxin Yang, Da Xing, Zhaoyu Lu, Chunfeng Ge, Dongfang Jia

Proceedings Volume 10103, 101031P (2017) https://doi.org/10.1117/12.2254737

KEYWORDS: Frequency modulation, Modulation, Continuous wave operation, Spectrum analysis, Single sideband modulation, Modulators, Signal generators, Photonics, Atrial fibrillation, Light sources, Tunable filters, Astatine, Optoelectronics

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Proceedings Article | 30 March 2017 Presentation + Paper

Picosecond-pulse generation over 10 GHz repetition rate based on cascaded semiconductor optical amplifiers

Wenlong Tai, Tianxin Yang, Chunfeng Ge, Dongfang Jia

Proceedings Volume 10103, 101030I (2017) https://doi.org/10.1117/12.2256791

KEYWORDS: Optoelectronics, Modulators, Picosecond phenomena, Mode locking, Pulsed laser operation, Optical communications, Optical signal processing, Semiconductor optical amplifiers, Four wave mixing, Telecommunications, Fiber lasers, Continuous wave operation, Tunable lasers, Radio optics, Data processing

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Proceedings Article | 7 August 2015 Paper

A miniaturized and integrated system to measure key parameters of ophthamic optical coherence tomography equipment

Xiaoyu Fu, Zhixiong Hu, Chunfeng Ge, Bingtao Hao, Wenli Liu, Baoyu Hong, Dongfang Jia

Proceedings Volume 9623, 96230H (2015) https://doi.org/10.1117/12.2193550

KEYWORDS: Optical coherence tomography, Image resolution, Imaging systems, System integration, Light, Spectral resolution, Charge-coupled devices, LabVIEW, Data acquisition, Data processing

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Proceedings Article | 28 April 2015 Paper

Novel method of generation of linear frequency modulation optical waveforms with swept range of over 200 GHz for lidar systems

Yuchen Zhang, Tianxin Yang, Tianhe Wang, Zhaoying Wang, Dongfang Jia, Chunfeng Ge

Proceedings Volume 9362, 93620J (2015) https://doi.org/10.1117/12.2078205

KEYWORDS: Phase modulation, LIDAR, Modulation, Modulators, Single sideband modulation, Frequency modulation, Signal detection, Signal generators, Phase shift keying, Detection theory

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Proceedings Article | 28 April 2015 Paper

Gain equalization of FM-EDFA by optimizing ring doping and mode content of the pump with a genetic algorithm

Changren Qiu, Tianxin Yang, Dong fang Jia, Zhaoying Wang, Chunfeng Ge

Proceedings Volume 9362, 93621A (2015) https://doi.org/10.1117/12.2078565

KEYWORDS: Doping, Genetic algorithms, Fiber amplifiers, Optical amplifiers, Erbium, Multiplexing, Ions, Computer simulations, Absorption, Optoelectronics

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Proceedings Article | 14 March 2015 Paper

Numerical studies of supercontinuum generation based on quasi-rectangle wave pumping

Tonghui Liu, Dongfang Jia, Ying Liu, Zhaoying Wang, Tianxin Yang

Proceedings Volume 9362, 936203 (2015) https://doi.org/10.1117/12.2075878

KEYWORDS: Solitons, Supercontinuum generation, Raman spectroscopy, Raman scattering, Dispersion, Picosecond phenomena, Photonic crystal fibers, Modulation, Nonlinear optics, Spectroscopy

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SPIE Journal Paper | 23 December 2014

Method for tuning chirp ratio of fiber gratings without central wavelength shift

Guanxiu Liu, Dejun Feng, Maosen Zhang, Dongfang Jia

OE, Vol. 53, Issue 12, 124105, (December 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.12.124105

KEYWORDS: Fiber Bragg gratings, Reflectivity, Sensors, Optical engineering, Optical simulations, Temperature metrology, Reflection, Picosecond phenomena, Information science, Optoelectronics

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Proceedings Article | 23 December 2013 Paper

Tunable optical delay line based on four-wave mixing wavelength conversion and dispersion in optical fibers

Jingwen Yang, Dongfang Jia, Tonghui Liu, Chunfeng Ge, Weiwei Jia, Zhaoying Wang, Tianxin Yang

Proceedings Volume 9043, 90430R (2013) https://doi.org/10.1117/12.2036181

KEYWORDS: Phased array optics, Single mode fibers, Four wave mixing, Dispersion, Optical communications, Slow light, Bandpass filters, Optical fibers, Light wave propagation, Tunable lasers

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Proceedings Article | 21 August 2013 Paper

Comparison of dispersion compensation for DQPSK modulated formats in 100Gbps DWDM optical communication system

Pei-pei Zhang, De-jun Feng, Wen-yu Huang, Dong-fang Jia

Proceedings Volume 8906, 89061E (2013) https://doi.org/10.1117/12.2033307

KEYWORDS: Dense wavelength division multiplexing, Modulation, Single mode fibers, Telecommunications, Eye, Optical communications, Phase shift keying, Receivers, Neodymium, Dispersion

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Proceedings Article | 27 March 2013 Paper

An FBG sensor interrogation technique based on a precise optical recirculating frequency shifter driven by RF signals

Zifei Wang, Tianxin Yang, Dongfang Jia, Zhaoying Wang, Mei Sang

Proceedings Volume 8624, 86240W (2013) https://doi.org/10.1117/12.2001003

KEYWORDS: Fiber Bragg gratings, Sensors, Single sideband modulation, Modulators, Light sources, Optical amplifiers, Signal detection, Precision optics, Optical filters, Electronic filtering

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Proceedings Article | 27 March 2013 Paper

Flat pulse-amplitude rational-harmonic-mode-locking fiber lasers with GHz pulse repetition rates

Tianhe Wang, Tianxin Yang, Dongfang Jia, Zhaoying Wang, Mei Sang, Neng Bai, Guifang Li

Proceedings Volume 8624, 86240Z (2013) https://doi.org/10.1117/12.2001231

KEYWORDS: Modulation, Fiber lasers, Mode locking, Modulators, Pulsed laser operation, Polarization, Active optics, Semiconductor lasers, Optical modulators, Optoelectronics

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Proceedings Article | 27 March 2013 Paper

Precise manipulation of light properties in optical domain by RF technology

Tianxin Yang, Zhou Zhang, Tianhe Wang, Zifei Wang, Zhaoying Wang, Chunfen Ge, Dongfang Jia, Mei Sang

Proceedings Volume 8624, 86240B (2013) https://doi.org/10.1117/12.2020723

KEYWORDS: Modulators, Fiber Bragg gratings, Wavelength division multiplexing, Modulation, Picosecond phenomena, Optical amplifiers, Light sources, Optical networks, Fiber lasers

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Proceedings Article | 14 March 2013 Paper

Numerical simulation of passively mode-locked fiber laser based on semiconductor optical amplifier

Jingwen Yang, Dongfang Jia, Zhongyuan Zhang, Jiong Chen, Tonghui Liu, Zhaoying Wang, Tianxin Yang

Proceedings Volume 8619, 86190D (2013) https://doi.org/10.1117/12.2003677

KEYWORDS: Mode locking, Polarization, Fiber lasers, Picosecond phenomena, Semiconductor optical amplifiers, Polarizers, Numerical simulations, Modulation, Gaussian pulse, Medical equipment

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Proceedings Article | 26 February 2013 Paper

Precisely tunable L-band multi-wavelength fiber laser

Xuwei Qin, Zhaoying Wang, Cuiqin Gao, Mei Sang, Dongfang Jia, Tianxin Yang

Proceedings Volume 8601, 860120 (2013) https://doi.org/10.1117/12.2001239

KEYWORDS: Fiber lasers, Modulators, Single sideband modulation, L band, Signal to noise ratio, Tunable lasers, Linear filtering, Mirrors, Optical amplifiers, Optical filters

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Proceedings Article | 29 February 2012 Paper

Simulation on the evolution of spectrum-managed optical pulse propagation in active fibers with programmable gain spectral profile

Tianxin Yang, Yu Peng, Delin Yang, Zhaoying Wang, Dongfang Jia, Mei Sang

Proceedings Volume 8255, 82551Q (2012) https://doi.org/10.1117/12.909863

KEYWORDS: Optical fibers, Optical amplifiers, Optical filters, Fiber amplifiers, Fiber lasers, Terahertz radiation, Ultrafast phenomena, Dispersion, Mode locking, Nonlinear optics

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Proceedings Article | 30 November 2011 Paper

High energy passively mode-locked erbium-doped fiber laser at tens of kHz repetition rate

Jiong Chen, Dongfang Jia, Changle Wang, Junlong Wang, Zhaoying Wang, Tianxin Yang

Proceedings Volume 8307, 83071Z (2011) https://doi.org/10.1117/12.904653

KEYWORDS: Mode locking, Fiber lasers, Polarization, Single mode fibers, Dispersion, Pulsed laser operation, Optoelectronics, Knowledge management, Signal to noise ratio, Wavelength division multiplexing

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Proceedings Article | 29 November 2011 Paper

Adiabatic soliton compression based on distributed Raman amplification in dispersion decreasing fiber

Dongfang Jia, Jiong Chen, Changle Wang, Yabin Li, Zhaoying Wang, Tianxin Yang

Proceedings Volume 8307, 83070L (2011) https://doi.org/10.1117/12.904652

KEYWORDS: Raman spectroscopy, Solitons, Dispersion, Optical fibers, Optoelectronics, Analytical research, Fiber amplifiers, Lithium, Instrumentation engineering, Information science

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Proceedings Article | 2 December 2010 Paper

Numerical simulation of slow light in the semiconductor optical amplifier

Zhaoying Wang, Miaomiao Hu, Dongfang Jia, Tianxin Yang

Proceedings Volume 7851, 78510U (2010) https://doi.org/10.1117/12.869710

KEYWORDS: Slow light, Modulation, Semiconductor optical amplifiers, Refractive index, Numerical simulations, Detection theory, Optical storage, Optical fibers, Optoelectronics, Four wave mixing

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Proceedings Article | 17 November 2010 Paper

Power-equalized C+L band multi-wavelength fiber laser based on cascaded semiconductor optical amplifier

Zhaoying Wang, Miaomiao Hu, Dongfang Jia, Tianxin Yang

Proceedings Volume 7847, 784725 (2010) https://doi.org/10.1117/12.869785

KEYWORDS: Fiber lasers, Semiconductor optical amplifiers, Active optics, Singular optics, Mirrors, Optical filters, Wavelength division multiplexing, Birefringence, Signal attenuation, Optoelectronics

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Proceedings Article | 2 December 2009 Paper

C+L band multi-wavelength fiber laser based on cascaded semiconductor optical amplifier

Zhaoying Wang, Lei Zhang, Dongfang Jia

Proceedings Volume 7630, 76302F (2009) https://doi.org/10.1117/12.850596

KEYWORDS: Fiber lasers, Semiconductor optical amplifiers, Wavelength division multiplexing, Signal to noise ratio, Mirrors, Quantum cascade lasers, Polarization, Birefringence, Optical filters, Reflectivity

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Proceedings Article | 25 November 2009 Paper

Adiabatic soliton compressor based on quasi-distributed gain

Dongfang Jia, Yongchao Wu, Rui Lei, Zhaoying Wang

Proceedings Volume 7509, 75090C (2009) https://doi.org/10.1117/12.837730

KEYWORDS: Solitons, Single mode fibers, Raman spectroscopy, Dispersion, Fiber amplifiers, Erbium, Numerical simulations, Modulation, Scanning probe microscopy, Optoelectronics

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Proceedings Article | 10 June 2006 Paper

10 GHz over 58 nm supercontinuum pumped by a regeneratively mode-locked fiber laser

Zhaoying Wang, Dongfang Jia, Wenjun Ni, Shichen Li

Proceedings Volume 6344, 63440J (2006) https://doi.org/10.1117/12.693429

KEYWORDS: Mode locking, Fiber lasers, Optical filters, Dispersion, Picosecond phenomena, Clocks, Waveguides, Polarization, Lithium, Optoelectronics

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Proceedings Article | 10 June 2006 Paper

Studies of 10GHz RZ pulse source based on regeneratively mode-locked fiber laser

Dongfang Jia, Bin Tan, Zhaoying Wang, Chunfeng Ge, Tianxin Yang, Shi-Chen Li

Proceedings Volume 6344, 63440R (2006) https://doi.org/10.1117/12.693433

KEYWORDS: Clocks, Mode locking, Fiber lasers, Modulators, Light sources, Solitons, Modulation, Wavelength division multiplexing, Polarization, Picosecond phenomena

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Showing 5 of 38 publications

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