Dr. Gyeong Hun Kim Profile

Dr. Gyeong Hun Kim

Researcher at Wellman Ctr for Photomedicine

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 13 March 2024 Presentation

High-speed wideband wavelength tunable Raman fiber laser for photoacoustic spectroscopy of lipids

Sang Min Park, Seongjin Bak, Gyeong Hun Kim, Soon-Woo Cho, Hwidon Lee, Chang-Seok Kim

Proceedings Volume PC12853, PC128530P (2024) https://doi.org/10.1117/12.3003593

KEYWORDS: Raman spectroscopy, Photoacoustic spectroscopy, Fiber lasers, Tunable lasers, Signal detection, Tissues, Tissue optics, Photoacoustic imaging, Fiber amplifiers, Biomedical optics

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Proceedings Article | 12 March 2024 Presentation

Time-domain coherent LiDAR based on wavelength-dependent reference arm

Dahun Jung, Gyeong Hun Kim, Min Uk Jung, Chang-Seok Kim

Proceedings Volume PC12893, PC128930J (2024) https://doi.org/10.1117/12.3003616

KEYWORDS: LIDAR, Distance measurement, Light sources, Optical path differences, Bragg wavelengths, Target detection, Target acquisition, Sunlight, Signal intensity, Signal detection

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Proceedings Article | 12 March 2024 Presentation

Extending measurement range in coherent LiDAR using multi-interferometer

Won Tae Choe, Min Uk Jung, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume PC12893, PC1289305 (2024) https://doi.org/10.1117/12.3003629

KEYWORDS: LIDAR, Distance measurement, Signal detection, Optical path differences, Laser interferometry, Laser frequency, Velocity measurements, Signal generators, Signal analyzers, Optical coherence

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Proceedings Article | 16 March 2023 Presentation

Variable repetition rate of 1700 nm SRS pulsed fiber laser for PA generation (Conference Presentation)

Seongjin Bak, Sang Min Park, Gyeong Hun Kim, Soon-Woo Cho, Chang-Seok Kim

Proceedings Volume PC12391, PC123910N (2023) https://doi.org/10.1117/12.2649719

KEYWORDS: Pulsed fiber lasers, Raman spectroscopy, Tissues, Fiber amplifiers, Absorption, Tissue optics, Single mode fibers, Raman scattering, Pulsed laser operation, Photoacoustic spectroscopy

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Proceedings Article | 16 March 2023 Presentation

Wavelength-switchable active mode-locked Raman fiber laser in 1.7 μm band for photoacoustic generation (Conference Presentation)

Sang Min Park, Seong Jin Bak, Gyeong Hun Kim, Soon-Woo Cho, Chang-Seok Kim

Proceedings Volume PC12391, PC123910M (2023) https://doi.org/10.1117/12.2649653

KEYWORDS: Mode locking, Raman spectroscopy, Fiber lasers, Photoacoustic spectroscopy, Absorption, Tissues, Signal detection, Pulsed laser operation, Tissue optics, Biomedical optics

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Proceedings Article | 9 March 2023 Presentation

Coherent ranging beyond coherence length using multiple delay lines

Min Uk Jung, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume PC12428, PC124280C (2023) https://doi.org/10.1117/12.2650981

KEYWORDS: Distance measurement, Ranging, Optical coherence tomography, LIDAR, Wavelength tuning, Light sources, Fiber Bragg gratings, Light, Interferometers, Reflectors

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Proceedings Article | 9 March 2023 Presentation

Frequency decoding using a dual interferometer for extending the measurable range

Ji Hyeok Lee, Min Uk Jung, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume PC12428, PC124280B (2023) https://doi.org/10.1117/12.2650972

KEYWORDS: Distance measurement, Interferometers, LIDAR, Signal detection, Signal to noise ratio, Point spread functions, Laser applications, Optical testing, Light sources, Interference (communication)

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Proceedings Article | 9 March 2023 Presentation

1.0-μm broadband dispersion-compensated stretched-pulse mode locking wavelength-swept source for in-vivo retinal OCT imaging

Gyeong Hun Kim, Seong Jin Bak, Tae Joong Eom, Chang-Seok Kim

Proceedings Volume PC12367, PC1236706 (2023) https://doi.org/10.1117/12.2650923

KEYWORDS: Dispersion, Optical coherence tomography, Mode locking, In vivo imaging, Retinal scanning, Laser resonators, Coherence imaging, Wavelength tuning, Spectroscopy, Real time imaging

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Proceedings Article | 5 March 2022 Presentation

FSR-tunable comb-swept laser with optical Vernier sampling for distance measurement

Seong Jin Bak, Hansol Jang, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume PC12008, PC1200801 (2022) https://doi.org/10.1117/12.2608474

KEYWORDS: Laser optics, Data acquisition, Distance measurement, Optical testing, Optical interferometry, Tunable lasers, Optical coherence tomography, LIDAR, Fiber lasers, Tunable filters

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Proceedings Article | 5 March 2022 Presentation

Mach–Zehnder-type white light interferometer through tunable-path-difference source

Jaeheung Kim, Sang Min Park, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume PC12008, PC1200803 (2022) https://doi.org/10.1117/12.2609275

KEYWORDS: Interferometers, Signal to noise ratio, Light, Telescopic pixel displays, Imaging systems, 3D image processing, 3D acquisition, Tomography, Stereoscopy, Interferometry

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Proceedings Article | 19 July 2019 Paper

Dual-band wavelength-comb-swept laser to extend displacement measurement range

Seongjin Bak, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume 11078, 110781W (2019) https://doi.org/10.1117/12.2526914

KEYWORDS: Interferometers, Fabry–Perot interferometers, Optical filters

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SPIE Journal Paper | 9 July 2019 Open Access

Multi-spectral laser speckle contrast images using a wavelength-swept laser

Jeong Won Kim, Hansol Jang, Gyeong Hun Kim, Seung Won Jun, Chang-Seok Kim

JBO, Vol. 24, Issue 07, 076001, (July 2019) https://doi.org/10.1117/12.10.1117/1.JBO.24.7.076001

KEYWORDS: Speckle, Absorbance, Imaging systems, Laser speckle contrast imaging, Absorption, Signal to noise ratio, Cameras, Light sources, In vivo imaging, Multispectral imaging

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Proceedings Article | 4 March 2019 Presentation

Retinal OCT imaging based on actively mode locked akinetic swept source at 1080 nm wavelength (Conference Presentation)

Hwi Don Lee, Gyeong Hun Kim, Jun Geun shin, Chang-Seok Kim, Tae Joong Eom

Proceedings Volume 10867, 1086707 (2019) https://doi.org/10.1117/12.2511599

KEYWORDS: Optical coherence tomography, Retinal scanning, Mode locking, Retina, Eye, Fiber lasers, In vivo imaging, Tissues, Diagnostics, Laser scattering

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Proceedings Article | 23 April 2017 Paper

High speed strain measurement of active mode locking FBG laser sensor using chirped FBG cavity

Gyeong Hun Kim, Joon Young Kim, Chang Hyun Park, Chang-Seok Kim, Hwi Don Lee, Youngjoo Chung

Proceedings Volume 10323, 103235L (2017) https://doi.org/10.1117/12.2267641

KEYWORDS: Fiber Bragg gratings, Mode locking, Sensors, Fiber lasers, Modulation, Pulse generators, Signal to noise ratio, Dispersion, Light sources, Laser resonators

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Proceedings Article | 23 April 2017 Paper

Quasi-distributed fiber sensor using active mode locking laser cavity with multiple FBG reflections

Chang Hyun Park, Gyeong Hun Kim, Chang-Seok Kim, Hwi Don Lee, Youngjoo Chung

Proceedings Volume 10323, 103235M (2017) https://doi.org/10.1117/12.2267642

KEYWORDS: Optical fibers, Reflectometry, Fiber Bragg gratings, Mode locking, Sensors, Fiber lasers, Modulation, Fiber optics sensors, Laser resonators, Active sensors

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Proceedings Article | 28 September 2015 Paper

A MHz speed wavelength sweeping for ultra-high speed FBG interrogation

Gyeong Hun Kim, Hwi Don Lee, Tae Joong Eom, Myung Yung Jeong, Chang-Seok Kim

Proceedings Volume 9634, 96345H (2015) https://doi.org/10.1117/12.2195301

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Sensors, Modulation, Tunable filters, Signal to noise ratio, Mode locking, Frequency modulation, Semiconductor optical amplifiers, Wavelength tuning

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Showing 5 of 16 publications

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