K
Kwang Yong Song
Researcher at Chung-Ang University
Publications - 167
Citations - 4673
Kwang Yong Song is an academic researcher from Chung-Ang University. The author has contributed to research in topics: Brillouin scattering & Brillouin zone. The author has an hindex of 35, co-authored 160 publications receiving 4308 citations. Previous affiliations of Kwang Yong Song include Universidad Pública de Navarra & École Polytechnique Fédérale de Lausanne.
Papers
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Observation of pulse delaying and advancement in optical fibers using stimulated Brillouin scattering
TL;DR: This paper demonstrates experimentally that it is possible to control optically the group velocity of an optical pulse as it travels along an optical fiber and derives the basic theory behind these group-delay changes and demonstrates the effect in two kinds of fibers which are conventionally used.
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Arbitrary-bandwidth Brillouin slow light in optical fibers
TL;DR: This paper demonstrates experimentally that Brillouin slow light with an arbitrary large bandwidth can be readily obtained in conventional optical fibers using a simple and inexpensive pump spectral broadening technique and sees no limit to extend this technique to the delaying of GHz-bandwidth signals.
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Distributed strain measurement with millimeter-order spatial resolution based on Brillouin optical correlation domain analysis
TL;DR: Distributed strain sensing with millimeter-order spatial resolution is demonstrated in optical fibers based on Brillouin optical correlation domain analysis and a novel beat lock-in detection scheme is introduced to suppress background noises coming from the reflection of BrillouIn pump waves.
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All-optical dynamic grating generation based on Brillouin scattering in polarization-maintaining fiber.
TL;DR: In this article, a moving acoustic grating is generated by stimulated Brillouin scattering between writing beams in one polarization and used to reflect an orthogonally polarized reading beam at different wavelengths.
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Optically controlled slow and fast light in optical fibers using stimulated Brillouin scattering
TL;DR: In this article, the authors demonstrate a method to achieve an extremely wide and flexible external control of the group velocity of signals as they propagate along an optical fiber, achieved by means of the gain and loss mechanisms of stimulated Brillouin scattering in the fiber itself.