Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Joong-Seon Choe"'
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:
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:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX.
We present optimized structure of waveguide photodetector (WGPD) having large responsivity in spite that its absorption layer is thin. Through beam-propagation method simulations, spot-size converter integrated WGPD is found to be able to have larger
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7583c57f16335b012076200bc17a8dd5
https://doi.org/10.1117/12.2543023
https://doi.org/10.1117/12.2543023
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:
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
Autor:
Jong-Hoi Kim, Seo-Young Lee, Joong-Seon Choe, Young-Tak Han, Chun-Ju Youn, Young-Ho Ko, Hyun-Do Joung, Yong-Hwan Kwon
Publikováno v:
ETRI Journal. 38:981-987
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dd8be1d0c779e9262d352b25b6f31b6
https://doi.org/10.4218/etrij.16.0015.0014
https://doi.org/10.4218/etrij.16.0015.0014
Autor:
Jong-Hoi Kim, Joong-Seon Choe, Young-Ho Ko, Seok-Tae Kim, Won Seok Han, Hyun-Do Jung, Yongsoon Baek, Young-Tak Han, Seo-Young Lee, Chun-Ju Youn
Publikováno v:
Optics express. 26(22)
We present a cost-effective and bandwidth-enhanced 64-Gbaud micro-intradyne coherent receiver based on hybrid integration of InP waveguide-photodetector (WG-PD) and silica planar lightwave circuit (PLC). InP waveguide-photodetector (WG-PD) arrays are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::358720ede55de6325ac7ca7d1baa4f59
https://pubmed.ncbi.nlm.nih.gov/30470016
https://pubmed.ncbi.nlm.nih.gov/30470016
Autor:
Kap-Joong Kim, Joong-Seon Choe, Byung-Seok Choi, Yongsoon Baek, Jong-Hoi Kim, Haesin Ko, Chun Ju Youn
Publikováno v:
2018 23rd Opto-Electronics and Communications Conference (OECC).
A free-space quantum key distribution guarantees unconditional communication security with various applications between distant parties. In this paper, we show the integrated optical components and modules for the free-space quantum key distribution.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c83fd3a22f5a5e8fb00870aa6d7f269
https://doi.org/10.1109/oecc.2018.8730079
https://doi.org/10.1109/oecc.2018.8730079