Prof. Bai-ou Guan Profile

Prof. Bai-ou Guan

Professor/Dean at Jinan Univ

SPIE Involvement:

Conference Program Committee | Editorial Board Member: Advanced Photonics Nexus | Author

Publications (96)

SPIE Journal Paper | 17 December 2024 Open Access

Microscale fiber photoacoustic spectroscopy for in situ and real-time trace gas sensing

Jun Ma, Enbo Fan, Haojie Liu, Yi Zhang, Cong Mai, Xin Li, Wei Jin, Bai-Ou Guan

AP, Vol. 6, Issue 06, 066008, (December 2024) https://doi.org/10.1117/12.10.1117/1.AP.6.6.066008

KEYWORDS: Staring arrays, Carbon monoxide, Photoacoustic spectroscopy, Acoustics, Acoustic waves, In situ remote sensing, Blood, Light absorption, Gas cells, Capillaries

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Proceedings Article | 14 August 2024 Paper

Coded optical time domain reflectometer system based on orthogonal frequency division multiplexing technology

Huahui Wu, Jin Huang, Linghao Cheng, Hao Liang, Bai-ou Guan

Proceedings Volume 13248, 132480D (2024) https://doi.org/10.1117/12.3033116

KEYWORDS: Signal to noise ratio, Orthogonal frequency division multiplexing, Matrices, Pulse signals, Time metrology, Reflectometry, Modulation, Backscatter, Spatial resolution, Signal detection

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Proceedings Article | 13 March 2024 Presentation

Photoacoustic/ultrasound endoscopy based on fiber optics

Yizhi Liang, Qi Zhang, Long Jin, Bai-ou Guan

Proceedings Volume PC12842, PC128420S (2024) https://doi.org/10.1117/12.3003834

KEYWORDS: Ultrasonography, In vivo imaging, Endoscopy, Fiber optics, Biological imaging, Acoustic waves, Sensors, Rectum, Visualization, Preclinical imaging

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Proceedings Article | 29 November 2023 Poster

Sensitivity enhancement around the dispersion turning point in helical-core fibers

Yanyan Zhi, Hao Chen, Yuting He, Lanlan Wang, Jie Li, Hao Liang, Chuang Wu, Bai-Ou Guan

Proceedings Volume 12771, 1277121 (2023) https://doi.org/10.1117/12.3009076

KEYWORDS: Wet etching, Etching, Cladding, Chemical reactions, Resonance modification, Resonance enhancement, Refractive index, Optical components, Modulation, Magnetism

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Proceedings Article | 19 December 2022 Presentation

Sensitivity dependence of single nanoparticle mass detection based on mechanical oscillations in optical microcavities

Yuting He, Yanyan Zhi, Jiancong Li, Xiao-Chong Yu, Jie Li, Bai-Ou Guan

Proceedings Volume 12321, 123210B (2022) https://doi.org/10.1117/12.2642040

KEYWORDS: Optical microcavities, Nanoparticles, Mechanical sensors, Signal detection, Scattering, Light-matter interactions, Environmental monitoring, Diagnostics, Analytical research, Absorption

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Proceedings Article | 15 February 2022 Paper

High resolution liquid refractive index sensing with tunable sensitivity based on a two-tap microwave photonic filter

Jingxu Chen, Yuan Cao, Xinhuan Feng, Xudong Wang, Jiejun Zhang, Bai-Ou Guan, Jianping Yao

Proceedings Volume 12166, 1216661 (2022) https://doi.org/10.1117/12.2617711

KEYWORDS: Sensors, Picosecond phenomena, Polarization, Microwave photonic filters, Liquids, Refractive index, Radio optics, Optical sensing, Fiber lasers, Optical amplifiers

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Proceedings Article | 15 February 2022 Paper

Microwave photonic interrogation of a real-time gas vacuum sensor

Baoliang Liao, Guangying Wang, Tiansheng Huang, Li-Peng Sun, Yuan Cao, Xudong Wang, Xinhuan Feng, Bai-Ou Guan, Jianping Yao

Proceedings Volume 12166, 1216668 (2022) https://doi.org/10.1117/12.2617732

KEYWORDS: Sensors, Digital signal processing, Microwave photonics, Bioalcohols, Fiber optics sensors, Microwave radiation, Signal processing, Fiber optics, Refractive index, Photodetectors

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Proceedings Article | 20 April 2020 Presentation

Towards a miniatured all-fiber photoacoustic endoscope (Conference Presentation)

Qiang Li, Yizhi Liang, Long Jin, Bai-Ou Guan

Proceedings Volume 11240, 112401M (2020) https://doi.org/10.1117/12.2544151

KEYWORDS: Photoacoustic spectroscopy, Endoscopes, Optical fibers, Reflectors, Ultrasonography, Transducers, Tissue optics, Prisms, Protactinium, Diagnostics

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Proceedings Article | 10 May 2019 Paper

High speed TFBG-SPR sensing demodulation system based on microwave photonics interrogation

Yuan Cao, Guangying Wang, Xuejun Zhang, Youxue Kong, Xudong Wang, Jiejun Zhang, Tuan Guo, Xinhuan Feng, Bai-ou Guan

Proceedings Volume 11068, 110680S (2019) https://doi.org/10.1117/12.2523905

KEYWORDS: Sensing systems, Demodulation, Signal processing, Microwave photonics, Cladding, Filtering (signal processing), Pulsed laser operation, Sensors

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Proceedings Article | 14 May 2018 Presentation + Paper

Secondary Bragg grating based fiber sensors for the application in high temperature environment

Yang Ran, Fu-Rong Feng, Long Jin, Bai-Ou Guan

Proceedings Volume 10654, 106540A (2018) https://doi.org/10.1117/12.2302806

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Bragg gratings, Laser damage threshold, Fiber optics sensors, Reflectivity, Reflectors, Ultraviolet radiation, Environmental sensing, Resistance

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Proceedings Article | 15 March 2018 Presentation

A short switching time pulsed laser for functional photoacoustic microscopy (Conference Presentation)

Chao LIU, Yizhi Liang, Long Jin, Bai-Ou Guan, Lidai Wang

Proceedings Volume 10494, 104942K (2018) https://doi.org/10.1117/12.2288883

KEYWORDS: Pulsed laser operation, Photoacoustic microscopy, Laser sources, Switching, Photoacoustic imaging, Oxygen, Optical fibers, Raman scattering, Preclinical imaging, Functional imaging

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Proceedings Article | 13 February 2018 Presentation + Paper

Bragg grating in micro-scaled optical fiber for cardiac biomarker sensing

Tong Liu, Lili Liang, Peng Xiao, Yang Ran, Long Jin, Bai-Ou Guan

Proceedings Volume 10488, 104880B (2018) https://doi.org/10.1117/12.2284649

KEYWORDS: Sensors, Bragg gratings, Optical fibers, Fiber optics, Proteins, Refractive index, Water, Biosensing, Reflectivity, Modulation

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Proceedings Article | 23 April 2017 Paper

Biomolecular detection with an interferometric microfiber-capillary optofluidic sensor

Lili Liang, Long Jin, Bai-Ou Guan

Proceedings Volume 10323, 103230Y (2017) https://doi.org/10.1117/12.2264772

KEYWORDS: Optical fibers, Microfluidics, Molecules, Fiber optics tests, Sensors, Interferometry, Environmental sensing, Silica, Capillaries, Fiber optics sensors

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Proceedings Article | 23 April 2017 Paper

Wide-field photoacoustic microscopy with a fiber laser ultrasound sensor

Yizhi Liang, Long Jin, Jun Ma, Xue Bai, Bai-Ou Guan

Proceedings Volume 10323, 103230Z (2017) https://doi.org/10.1117/12.2265286

KEYWORDS: Sensors, Fiber lasers, Ultrasonography, Optical fibers, Photoacoustic microscopy, Raster graphics, Spherical lenses, Ear, Scanners, Acoustics

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Proceedings Article | 28 September 2015 Paper

Vector magnetic measurement based on directional scattering between polarized plasmon wave and arrayed nanoparticles

Zhaochuan Zhang, Tuan Guo, Fu Liu, Qiang Wu, Jie Li, Linghao Cheng, Bai-Ou Guan

Proceedings Volume 9634, 96345N (2015) https://doi.org/10.1117/12.2194725

KEYWORDS: Magnetism, Nanoparticles, Magnetic sensors, Plasmons, Scattering, Cladding, Fiber Bragg gratings, Sensors, Surface plasmons, Polarization

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Proceedings Article | 28 September 2015 Paper

Reflective refractometer based on strong optical coupling between a tilted fiber Bragg grating and a parallel D-shaped fiber

Zhongyue Cai, Tuan Guo, Fu Liu, Bai-Ou Guan, Gang-Ding Peng, Jacques Albert

Proceedings Volume 9634, 96344I (2015) https://doi.org/10.1117/12.2194702

KEYWORDS: Cladding, Fiber Bragg gratings, Sensors, Reflection, Refractive index, Reflectivity, Biosensing, Refractometry, Bridges, Optical fibers

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Proceedings Article | 28 September 2015 Paper

Ultra-thin silver-coated tilted fiber grating for surface and bulk refractive index measurement

Xuhui Qiu, Tuan Guo, Fu Liu, Bai-Ou Guan, Hwa-Yaw Tam, Jacques Albert

Proceedings Volume 9634, 96346G (2015) https://doi.org/10.1117/12.2194721

KEYWORDS: Sensors, Coating, Cladding, Surface plasmons, Polarization, Refractive index, Silver, Absorption, Plasmons, Plasmonics

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Proceedings Article | 20 July 2015 Paper

Fiber-optic Doppler velocimeter based on a dual-polarization fiber grating laser

Zeyuang Kuang, Linghao Cheng, Yizhi Liang, Hao Liang, Bai-Ou Guan

Proceedings Volume 9655, 965507 (2015) https://doi.org/10.1117/12.2184233

KEYWORDS: Fiber lasers, Doppler effect, Fiber optics, Laser Doppler velocimetry, Motion measurement, Velocity measurements, Collimators, Fiber optics tests, Photodetectors, Birefringence

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Proceedings Article | 1 July 2015 Paper

Design of a high-birefringence two-core photonic crystal fiber for simultaneous measurement of pressure and temperature

Chuang Wu, Zi-Wei Feng, Bai-Ou Guan, Hwa-Yaw Tam

Proceedings Volume 9655, 965528 (2015) https://doi.org/10.1117/12.2182354

KEYWORDS: Temperature metrology, Silica, Photonic crystal fibers, Birefringence, Refractive index, Sensors, Fiber optics sensors, Interferometers, Finite element methods, Optical sensors

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Proceedings Article | 1 July 2015 Paper

Sensitive strain sensor based on regenerated microfiber Bragg grating for high temperature environment

Yang Ran, Shuai Gao, Long Jin, Li-Peng Sun, Yun-Yun Huang, Jie Li, Baiou Guan

Proceedings Volume 9655, 96552V (2015) https://doi.org/10.1117/12.2183669

KEYWORDS: Fiber Bragg gratings, Sensors, Modulation, Environmental sensing, Resistance, Multimode fibers, Excimer lasers, Ultraviolet radiation, Reflectivity, Aerospace engineering

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Proceedings Article | 1 July 2015 Paper

A tapered optical fiber interferometer study on the microdynamics phase separation mechanism of the poly(N-isopropylacrylamide) aqueous solution

Yunyun Huang, Zhuang Tian, Jie Li, Bai-Ou Guan

Proceedings Volume 9655, 965510 (2015) https://doi.org/10.1117/12.2184209

KEYWORDS: Tapered optical fibers, Polymers, Interferometers, Molecular aggregates, Optical fibers, Temperature metrology, Fiber optics sensors, Macromolecules, Refractive index, Geometrical optics

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Proceedings Article | 1 July 2015 Paper

In situ and ultrasensitive DNA detection based on a graphene-coated silica fiber taper interferometer

Bo Yu, Yunyun Huang, Mingfei Ding, Yang Ran, Bai-Ou Guan

Proceedings Volume 9655, 96551F (2015) https://doi.org/10.1117/12.2184221

KEYWORDS: Graphene, Optical fibers, Interferometers, Biosensors, Sensors, Coating, Molecules, Biomedical optics, Tapered optical fibers, Geometrical optics

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Proceedings Article | 1 July 2015 Paper

Beat frequency dependence of the sensitivity for Faraday-rotation based heterodyning fiber laser magnetic field sensor

Nengpeng Hu, Linghao Cheng, Li Yu, Yizhi Liang, Hao Liang, Bai-Ou Guan

Proceedings Volume 9655, 96552X (2015) https://doi.org/10.1117/12.2184222

KEYWORDS: Fiber lasers, Magnetism, Polarization, Magnetic sensors, Heterodyning, Birefringence, Erbium, Photodetectors, Laser resonators, Excimer lasers

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Proceedings Article | 1 July 2015 Paper

A microdroplet-etched fiber Fabry-Perot resonator for the refractive index sensing

Bo Liu, Jie Li, Li-Peng Sun, Mengmei Geng, Yunyun Huang, Long Jin, Bai-Ou Guan

Proceedings Volume 9655, 96552N (2015) https://doi.org/10.1117/12.2185224

KEYWORDS: Polarization, Resonators, Refractive index, Fabry–Perot interferometers, Sensors, Structured optical fibers, Fiber Bragg gratings, Optical fibers, Fabrication, Etching

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Proceedings Article | 1 July 2015 Paper

Noise performance improvement of dual-polarization fiber grating laser through external optical feedback

Yiqin Lao, Kuanglu Yu, Linghao Cheng, Yizhi Liang, Hao Liang, Bai-Ou Guan

Proceedings Volume 9655, 96552Y (2015) https://doi.org/10.1117/12.2184234

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Laser optics, Laser resonators, Denoising, Phase shifts, Single mode fibers, Polarization, Laser applications, Phase measurement

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Proceedings Article | 1 July 2015 Paper

High-resolution, compact dual-frequency fiber laser accelerometer

Qian Cao, Yizhi Liang, Long Jin, Linghao Cheng, Bai-Ou Guan

Proceedings Volume 9655, 965538 (2015) https://doi.org/10.1117/12.2185243

KEYWORDS: Fiber lasers, Signal to noise ratio, Sensors, Laser resonators, Polarization, Phase measurement, Interference (communication), Signal detection, Transducers, Magnesium

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Proceedings Article | 1 July 2015 Paper

Sensing characteristics of Brillouin scattering spectra in a micro-scaled silica fiber

Hao Liang, Qi Sun, Jie Li, Li-Peng Sun, Bai-Ou Guan

Proceedings Volume 9655, 96552R (2015) https://doi.org/10.1117/12.2185285

KEYWORDS: Scattering, Single mode fibers, Optical fibers, Light scattering, Temperature metrology, Acoustics, Sun, Structured optical fibers, Lithium, Nonlinear optics

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Proceedings Article | 1 July 2015 Paper

Heterodyning fiber laser based magnetic field sensor using magnetostrictive composite material

Wei He, Linghao Cheng, Qiang Yuan, Yizhi Liang, Long Jin, Bai-Ou Guan

Proceedings Volume 9655, 96552D (2015) https://doi.org/10.1117/12.2184138

KEYWORDS: Fiber lasers, Magnetism, Magnetic sensors, Composites, Heterodyning, Fiber optics sensors, Fiber optics, Sensors, Epoxies, Particles

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Proceedings Article | 1 July 2015 Paper

Sensing characteristics of all-solid photonic bandgap fiber modal interferometers

Mengmei Geng, Jie Li, Li-Peng Sun, Bo Liu, Yunyun Huang, Yang Ran, Bai-Ou Guan

Proceedings Volume 9655, 96552P (2015) https://doi.org/10.1117/12.2185242

KEYWORDS: Interferometers, Cladding, Fiber Bragg gratings, Photonic crystals, Photonic crystal fibers, Structured optical fibers, Temperature metrology, Lithium, Sun, Photodetectors

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Proceedings Article | 11 November 2014 Paper

Broadband-rejection filters using chirped and tilted fiber gratings

Fu Liu, Tuan Guo, Bai-Ou Guan

Proceedings Volume 9274, 92740D (2014) https://doi.org/10.1117/12.2072879

KEYWORDS: Cladding, Optical filters, Tunable filters, Refractive index, Polarization, Fiber Bragg gratings, Coating, Photorefractive polymers, Polymers, Glasses

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