Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Kap-Joong Kim"'
Autor:
Minchul Kim, Kyongchun Lim, Joong-Seon Choe, Byung-Seok Choi, Kap-Joong Kim, Ju Hee Baek, Chun Ju Youn
Publikováno v:
ETRI Journal, Vol 46, Iss 5, Pp 806-816 (2024)
In this study, we report a transmitter system for free-space quantum key distri-bution (QKD) using the BB84 protocol, which does not require an internal alignment process, by using a wavelength-division multiplexing (WDM) filter and polarization-enco
Externí odkaz:
https://doaj.org/article/b5719f799cfa492abc0cf751198b2cd1
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-8 (2018)
We have developed an integrated polarization beam splitter (PBS) module with silica planar lightwave circuit technology for use in BB84 quantum key distribution (QKD). The PBS module is designed to operate on four linear polarizations of the horizont
Externí odkaz:
https://doaj.org/article/1e67b4429961464eacab288d03ae9a80
Autor:
Kyongchun Lim, Byung-Seok Choi, Joong-Seon Choe, Ju Hee Baek, Minchul Kim, Kap-Joong Kim, Chun Ju Youn
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023.
Free-space quantum key distribution usually requires limited space and weight. We implement reference frame independent quantum key distribution protocol with chip-scale integrated optical circuits such as laser diode, variable optical attenuator, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f2db015b81c92d5253343f839feff6f
https://doi.org/10.1364/ofc.2023.m1i.4
https://doi.org/10.1364/ofc.2023.m1i.4
Autor:
Joon Tae Ahn, Shinmo An, Ho Sung Kim, Young-Ho Ko, Duk-Jun Kim, Won Seok Han, Kap-Joong Kim, Tae-Soo Kim
Publikováno v:
ETRI Journal, Vol 43, Iss 5, Pp 909-915 (2021)
GaAs on Si grown via metalorganic chemical vapor deposition is demonstrated using various Si substrate thicknesses and three types of dislocation filter layers (DFLs). The bowing was used to measure wafer‐scale characteristics. The surface morpholo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ab1eb9c9ac5e4cc79bacc5689aa4571
https://doi.org/10.4218/etrij.2021-0003
https://doi.org/10.4218/etrij.2021-0003
Autor:
Minchul Kim, Kyongchun Lim, Chun Ju Youn, Joong-Seon Choe, Ju Hee Baek, Kap-Joong Kim, Byung-Seok Choi, Young-Ho Ko
Publikováno v:
Optics express. 29(12)
One of the challenging issues in free-space quantum key distribution (QKD) is the requirement of active compensation of the reference frame between the transmitter and receiver. Reference frame independent (RFI) QKD removes active compensation, but i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28e11a061d58da6752f8553d8cff261f
https://pubmed.ncbi.nlm.nih.gov/34154140
https://pubmed.ncbi.nlm.nih.gov/34154140
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-8 (2018)
We have developed an integrated polarization beam splitter (PBS) module with silica planar lightwave circuit technology for use in BB84 quantum key distribution (QKD). The PBS module is designed to operate on four linear polarizations of the horizont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::071e24896c0b403262b107b6c9fe1b09
https://doi.org/10.1109/jphot.2017.2788638
https://doi.org/10.1109/jphot.2017.2788638
Autor:
Byung-Seok Choi, Kap-Joong Kim, Jung Jin Ju, Je-Hyung Kim, Jong-Hoi Kim, Kyu Young Kim, Chun Ju Youn, Young-Ho Ko, Won Seok Han
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
A single photon source is an essential element for the photonic quantum information applications including the quantum communication, the quantum simulation, and the quantum computation [1,2]. Semiconductor quantum dots (QDs) have been widely conside
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72fd057d6ddce5fe1ce64d17927be846
https://doi.org/10.1109/cleoe-eqec.2019.8872265
https://doi.org/10.1109/cleoe-eqec.2019.8872265
Autor:
Young-Ho Ko, Won Seok Han, Kap-Joong Kim, Byung-Seok Choi, Kyu Young Kim, Je-Hyung Kim, Heeju Kim, Yudong Jang, Donghan Lee, Chun Ju Youn, Jong-Hoi Kim, Jung Jin Ju
Publikováno v:
Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80378396002faddd2688e4b8bed224d3
https://doi.org/10.1364/cleo_at.2019.jtu2a.43
https://doi.org/10.1364/cleo_at.2019.jtu2a.43
Autor:
Heasin Ko, Joong-Seon Choe, Byung-Seok Choi, Kap-Joong Kim, Yongsoon Baek, Chun Ju Youn, Jong-Hoi Kim
Publikováno v:
OFC
We developed a high-speed quantum key distribution (QKD) system integrated with a compact self-developed silica-based planar lightwave circuit chip and a micro-optics-based polarization module. Also, we demonstrated that our system can generate avera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb01cc3ed909028078d4e62dfae99097
https://doi.org/10.1364/ofc.2019.m4f.2
https://doi.org/10.1364/ofc.2019.m4f.2
Publikováno v:
Optical Materials Express. 11:943
A GaAs quantum-well laser diode was directly grown on silicon (001) substrate by a hybrid technique comprising AlAs nucleation and thermal cycle annealing. The hybrid technique provided the advantages of superior surface roughness, high quantum effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d53a0466b23407a925cc24892627ee2d
https://doi.org/10.1364/ome.411328
https://doi.org/10.1364/ome.411328