Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Heung Sun Jeong"'
Autor:
Moon Hyeok Lee, Heung-Sun Jeong, Seoung Hun Lee, Changkyun Ha, Kyong Hon Kim, Dong Wook Kim, Min Hee Lee
Publikováno v:
Optics Communications. 361:162-167
We demonstrate improved single photon detection efficiencies of InGaAs/InP avalanche photodiodes (APDs) in a wavelength-division-multiplexed (WDM) scheme for high-capacity plug-and-play-type two-way quantum key distributions (QKDs). Single-photon det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0e9cdaaf2c19c95d415c2b1dc4755ce
https://doi.org/10.1016/j.optcom.2015.10.050
https://doi.org/10.1016/j.optcom.2015.10.050
Autor:
Shin Mo An, Heung Sun Jeong, Ki Nam Kim, Sang Chul Jeon, Sang Hyun Park, Dong Eun Yoo, Kyong Hon Kim, El-Hang Lee, Dong Wook Kim
Publikováno v:
Journal of the Optical Society of Korea. 17:433-440
We present an experimental and numerical study of spectral profiles of effective group indices of hydrogenated amorphous silicon (a-Si:H) waveguides and of their chromatic-dispersion effect on the four-wave-mixing (FWM) signal generation. The a-Si:H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63f435b61bfd06b9e2d411dc057ca3e1
https://doi.org/10.3807/josk.2013.17.5.433
https://doi.org/10.3807/josk.2013.17.5.433
Publikováno v:
Journal of the Korean Physical Society. 62:428-434
We report on experimental measurements of the signal-wavelength conversion efficiency through the four-wave-mixing (FWM) process in a silicon strip nanowaveguide (SiNW) compared with theoretically-calculated results. The conversion efficiency has bee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2036318e952a0f1c4f589f6f75730392
https://doi.org/10.3938/jkps.62.428
https://doi.org/10.3938/jkps.62.428
Publikováno v:
2014 12th International Conference on Optical Internet 2014 (COIN).
We report on experimentally measured detection efficiency of single-photon detectors (SPDs) based on wavelength-division-multiplexed (WDM) InGaAs/InP avalanche photodiodes (APDs). Multiple SPDs combined in a WDM scheme can be used to overcome the det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::beca836eb802ea0fc55efcd5e8e509ce
https://doi.org/10.1109/coin.2014.6950611
https://doi.org/10.1109/coin.2014.6950611
Autor:
Moon Hyeok Lee, Kyong Hon Kim, Yudeuk Kim, Sang Chul Jeon, Heung-Sun Jeong, Dong Eun Yoo, Ki Nam Kim, Dong Wook Kim
Publikováno v:
2014 12th International Conference on Optical Internet 2014 (COIN).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00782f5673ec37c793638215e5fe587f
https://doi.org/10.1109/coin.2014.6950600
https://doi.org/10.1109/coin.2014.6950600
Publikováno v:
10th International Conference on Group IV Photonics.
Direct coupled-mode beam propagation analysis in the silicon-based one-dimensional photonic crystal waveguides (1D-PhCW) has been performed to explain the group-velocity-dependent enhanced four-wave-mixing (FWM) effect and to evaluate the sectional c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40c9dde78b0b2b8b7f2768c1c7215e42
https://doi.org/10.1109/group4.2013.6644423
https://doi.org/10.1109/group4.2013.6644423
Autor:
Seung Hwan Kim, Kyong Hon Kim, Seoung Hun Lee, Heung-Sun Jeong, El-Hang Lee, Dong Wook Kim, Jong-Moo Lee
Publikováno v:
8th IEEE International Conference on Group IV Photonics.
Four-wave-mixing (FWM) efficiency of a silicon-based one-dimensional photonic crystal waveguide was measured along with its spectral profile of the group index. High FWM efficiencies were observed near the band edge compared to those at the middle se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed72dd8c05cc9218c81fe06cf7cb7314
https://doi.org/10.1109/group4.2011.6053811
https://doi.org/10.1109/group4.2011.6053811
Publikováno v:
Applied Optics. 51:720
We propose a simple white-light interferometric method of measuring a one-dimensional rotation angle with use of an optical plane parallel plate of standard refractive index. The phase change of the interference pattern of the interferometer during t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a609d4805c4c5bf95b3ff87b6ce5cf6
https://doi.org/10.1364/ao.51.000720
https://doi.org/10.1364/ao.51.000720
Publikováno v:
Applied Optics (1559-128X); 2/20/2012, Vol. 51 Issue 6, p720-725, 6p
Autor:
Dong Wook Kim, Seoung Hun Lee, Seung Hwan Kim, Heung-Sun Jeong, Kyong Hon Kim, Jong-Moo Lee, El-Hang Lee
Publikováno v:
2011 8th IEEE International Conference on Group IV Photonics (GFP); 2011, p344-346, 3p