Prof. Tianhua Xu Profile

Prof. Tianhua Xu

at Tianjin Univ

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 27 November 2023 Paper

Fast-recovering phi-OTDR system based on multi-sideband pulse modulation

Yixuan Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Zhenyang Ding, Tianhua Xu, Tiegen Liu

Proceedings Volume 12771, 127710G (2023) https://doi.org/10.1117/12.2686669

KEYWORDS: Modulation, Pulse signals, Signal detection, Demodulation, Sampling rates, Acoustics, Vibration, Optical filters

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Proceedings Article | 28 September 2023 Paper

Simultaneous low- and high-wavenumber optical fiber CARS probe using vector adjustment and pulse-to-pulse alignment

Tong Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Panpan Niu, Liu Yize, Tianhua Xu, Tiegen Liu

Proceedings Volume 12813, 1281308 (2023) https://doi.org/10.1117/12.2691713

KEYWORDS: Pulse signals, Optical fibers, Signal detection, Raman spectroscopy, Vibration, Ultrafast phenomena, Optical filters, Dichroic mirrors, Bioalcohols, Tunable filters

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Proceedings Article | 28 September 2023 Paper

A high-speed demodulation scheme for phi-OTDR system based on dual-sideband modulation

Yixuan Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Zhenyang Ding, Tianhua Xu, Tiegen Liu

Proceedings Volume 12813, 1281307 (2023) https://doi.org/10.1117/12.2691710

KEYWORDS: Signal detection, Modulation, Demodulation, Pulse signals, Vibration, Optical sensing, Optical fibers, Electronic filtering, Computer hardware

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Proceedings Article | 27 December 2022 Presentation + Paper

Comparison of kramers–kronig and coherent receivers for few-mode long-haul optical transmission

Jiahui Yang, Jian Zhao, Yuqing Yang, Tianyu Gao, Yanze Wang, Tianhua Xu

Proceedings Volume 12311, 1231103 (2022) https://doi.org/10.1117/12.2642000

KEYWORDS: Receivers, Signal detection, Digital signal processing, Telecommunications, Photodetectors, Transmittance, Interference (communication), Space division multiplexing

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Proceedings Article | 21 December 2022 Presentation + Paper

Amplifier limited information rates in high-speed optical fiber communication systems

Ji Qi, Tianhua Xu, Zheng Liu, Cenqin Jin, Tongyang Xu, Lingbo Li, Leslie Kanthan, Jian Zhao, Tiegen Liu

Proceedings Volume 12314, 1231404 (2022) https://doi.org/10.1117/12.2643394

KEYWORDS: Telecommunications, Signal to noise ratio, Fiber optic communications, Optical amplifiers, Digital signal processing, Fiber amplifiers, Modulation, Binary data, Systems modeling

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Proceedings Article | 15 December 2022 Paper

Microwave photonics self-interference cancellation and frequency down-conversion for distributed full duplex communication systems

Zhe Liu, Dayong Wang, Yunxin Wang, Tianhua Xu, Peihan Li, Feng Yang, Zheng He

Proceedings Volume 12478, 124783I (2022) https://doi.org/10.1117/12.2654827

KEYWORDS: Silicon, Modulation, Strontium, Modulators, Telecommunications, Microwave photonics, Single mode fibers, Signal generators, Quadrature amplitude modulation, Antennas

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Proceedings Article | 26 July 2022 Paper

Increase demodulation rate of optical fiber distribution acoustic sensing

Yixuan Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Zhenyang Ding, Tianhua Xu, Tiegen Liu

Proceedings Volume 12279, 1227909 (2022) https://doi.org/10.1117/12.2616538

KEYWORDS: Demodulation, Acoustics, Signal detection, Data acquisition, Signal processing, Optical fibers, Data processing, Spatial resolution, Optical sensing, Parallel computing

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Proceedings Article | 26 July 2022 Paper

Highly sensitive optical fiber micro-cavity sensors

Junfeng Jiang, Kun Liu, Shuang Wang, Tianhua Xu, Xuezhi Zhang, Panpan Niu, Yize Liu, Ziyihui Wang, Zhe Yu, Tiegen Liu

Proceedings Volume 12279, 1227902 (2022) https://doi.org/10.1117/12.2616471

KEYWORDS: Fiber optics sensors, Sensors, Optical fibers, Liquid crystals, Fiber lasers, Nanoparticles, Microfluidics, Magnetic sensors

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Proceedings Article | 8 July 2022 Paper

Fiber optic SPR sensor based on the heterostructure of MoS2/WS2 with high figure of merit

Jianying Jing, Kun Liu, Junfeng Jiang, Tianhua Xu, Shuang Wang, Jinying Ma, Zhao Zhang, Wenlin Zhang, Tiegen Liu

Proceedings Volume 12283, 1228305 (2022) https://doi.org/10.1117/12.2616434

KEYWORDS: Sensors, Fiber optics sensors, Surface plasmons, Fiber optics, Refractive index, Optical fibers

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Proceedings Article | 9 October 2021 Presentation + Paper

Evaluation of transmission reach and information rates in nonlinear optical fiber communication systems

Mupeng Li, Tianhua Xu, Jiazheng Ding, Zheng Liu, Wenxiu Hu, Junfeng Jiang, Tiegen Liu

Proceedings Volume 11891, 1189109 (2021) https://doi.org/10.1117/12.2602418

KEYWORDS: Signal to noise ratio, Telecommunications, Modulation, Optical fibers, Digital signal processing, Systems modeling, Interference (communication), Transmittance, Optical amplifiers, Optical communications

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Proceedings Article | 9 October 2021 Presentation + Paper

Influence of equalization enhanced phase noise on digital nonlinearity compensation in Nyquist-spaced superchannel transmission systems

Jiazheng Ding, Tianhua Xu, Yunfan Zhang, Zheng Liu, Cenqin Jin, Jian Zhao, Tiegen Liu

Proceedings Volume 11891, 1189107 (2021) https://doi.org/10.1117/12.2600923

KEYWORDS: Signal to noise ratio, Telecommunications, Digital signal processing, Optical fibers, Distortion, Optical communications, Optical amplifiers, Transmittance, Modulation, Fiber lasers

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Proceedings Article | 9 October 2021 Presentation + Paper

Accuracy of EGN model in ultra-wideband optical fiber communication systems

Zheng Liu, Tianhua Xu, Jianzheng Ding, Yunfan Zhang, Mupeng Li, Tongyang Xu, Tiegen Liu

Proceedings Volume 11891, 1189106 (2021) https://doi.org/10.1117/12.2601076

KEYWORDS: Signal to noise ratio, Systems modeling, Telecommunications, Terahertz radiation, Fiber optic communications, Optical amplifiers, Wavelength division multiplexing, Signal processing, Optical simulations, Performance modeling

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Proceedings Article | 9 October 2021 Presentation + Paper

Carrier phase recovery in optical fiber communication systems using high-order modulation formats

Yunfan Zhang, Tianhua Xu, Jiazheng Ding, Ziyihui Wang, Tongyang Xu, Jian Zhao, Tiegen Liu

Proceedings Volume 11891, 1189103 (2021) https://doi.org/10.1117/12.2601072

KEYWORDS: Phase shift keying, Telecommunications, Modulation, Digital signal processing, Optical communications, Signal to noise ratio, Algorithm development, Fiber optic communications, Signal detection, Interference (communication)

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Proceedings Article | 10 October 2020 Presentation + Paper

Digital back-propagation in optical fiber communication systems considering equalization enhanced phase noise

Jiazheng Ding, Tianhua Xu, Ziyihui Wang, Jian Zhao, Tiegen Liu

Proceedings Volume 11545, 115450A (2020) https://doi.org/10.1117/12.2575125

KEYWORDS: Telecommunications, Data communications, Fiber optic communications, Phase shift keying, Modulation, Optical communications, Digital signal processing, Dispersion, Fiber lasers, Optical fibers

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Proceedings Article | 10 October 2020 Presentation + Paper

Electrostatic-responsive microdroplet lasers for ultrasensitive molecular detection

Ziyihui Wang, Yifan Zhang, Tianhua Xu, Zhiyi Yuan, Jiazheng Ding, Yu-Cheng Chen, Tiegen Liu

Proceedings Volume 11554, 1155406 (2020) https://doi.org/10.1117/12.2574262

KEYWORDS: Liquid crystals, Molecular lasers, Biomedical optics, Optical resonators, Sensors, Optical microscopes, Microsensors, Biosensing, Molecular interactions

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Showing 5 of 15 publications

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