Y
Yoonchan Jeong
Researcher at Seoul National University
Publications - 246
Citations - 5234
Yoonchan Jeong is an academic researcher from Seoul National University. The author has contributed to research in topics: Fiber laser & Optical fiber. The author has an hindex of 35, co-authored 245 publications receiving 4910 citations. Previous affiliations of Yoonchan Jeong include University of Southampton.
Papers
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Journal ArticleDOI
Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power
TL;DR: A highly-efficient cladding-pumped ytterbium-doped fiber laser generating 1.36 kW of continuous-wave output power at 1.1 mum with 83% slope efficiency and near diffraction-limited beam quality is demonstrated.
Journal ArticleDOI
High power fiber lasers
Johan Nilsson,Jayanta K. Sahu,Yoonchan Jeong,V. Philippov,Daniel B. S. Soh,Christophe A. Codemard,Pascal Dupriez,J. W. Kim,David J. Richardson,A. Malinowski,A. Piper,Jonathan H. V. Price,Kentaro Furusawa,W.A. Clarkson,David N. Payne +14 more
TL;DR: These results were obtained with (nearly) diffraction-limited beam quality, which determines the ability to focus to a tight spot, and this, rather than the power itself, determines the power density achievable on a target.
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Power Scaling of Single-Frequency Ytterbium-Doped Fiber Master-Oscillator Power-Amplifier Sources up to 500 W
TL;DR: In this article, continuous-wave single-frequency master- oscillator power-amplifier (MOPA) sources based on ytterbium-doped fibers (YDFs) with particular attention to their recent advances and their experimental results were discussed.
Journal ArticleDOI
Erbium:Ytterbium Codoped Large-Core Fiber Laser With 297-W Continuous-Wave Output Power
Yoonchan Jeong,Seongwoo Yoo,C.A. Coderaard,Johan Nilsson,J.K. Sahu,David N. Payne,R. Horley,Paul Turner,L.M.B. Hickey,A. Harker,M. Lovelady,A. Piper +11 more
TL;DR: In this paper, a high power and high efficiency erbium:ytterbium (Er:Yb) codoped fiber laser was demonstrated, which produces 297 W of continuous-wave output at 1567 nm.
Journal ArticleDOI
On the formation of noise-like pulses in fiber ring cavity configurations
TL;DR: In this paper, a detailed overview of the current status of fiber-based noise-like pulse (NLP) research conducted over the past decade is presented, together with a newly conducted, systematic study on their temporal, spectral, and coherence characteristics in nonlinear polarization rotation (NPR)-based erbium-doped fiber ring cavity configurations.