Telecommunication compatibility evaluation for co-existing quantum key distribution in homogenous multicore fiberVise andre og tillknytning
2020 (engelsk)Inngår i: IEEE Access, E-ISSN 2169-3536, Vol. 8, s. 78836-78846, artikkel-id 9078126
Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
Quantum key distribution (QKD) is regarded as an alternative to traditional cryptography methods for securing data communication by quantum mechanics rather than computational complexity. Towards the massive deployment of QKD, embedding it with the telecommunication system is crucially important. Homogenous optical multi-core fibers (MCFs) compatible with spatial division multiplexing (SDM) are essential components for the next-generation optical communication infrastructure, which provides a big potential for co-existence of optical telecommunication systems and QKD. However, the QKD channel is extremely vulnerable due to the fact that the quantum states can be annihilated by noise during signal propagation. Thus, investigation of telecom compatibility for QKD co-existing with high-speed classical communication in SDM transmission media is needed. In this paper, we present analytical models of the noise sources in QKD links over heterogeneous MCFs. Spontaneous Raman scattering and inter-core crosstalk are experimentally characterized over spans of MCFs with different refractive index profiles, emulating shared telecom traffic conditions. Lower bounds for the secret key rates and quantum bit error rate (QBER) due to different core/wavelength allocation are obtained to validate intra- and inter-core co-existence of QKD and classical telecommunication
sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers Inc. , 2020. Vol. 8, s. 78836-78846, artikkel-id 9078126
Emneord [en]
communication system security, Quantum key distribution, spatial division multiplexing, telecommunications, Bit error rate, Optical fiber communication, Quantum theory, Refractive index, Space division multiple access, Classical communication, Communication infrastructure, Compatibility evaluations, Optical telecommunication system, Quantum bit error rate, Refractive index profiles, Spontaneous Raman scattering, Quantum cryptography
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-45109DOI: 10.1109/ACCESS.2020.2990186Scopus ID: 2-s2.0-85084824918OAI: oai:DiVA.org:ri-45109DiVA, id: diva2:1443249
Merknad
Funding details: Horizon 2020 Framework Programme, H2020, 752826; Funding details: VetenskapsrÃ¥det, VR; Funding details: VINNOVA; Funding details: Stiftelsen för Strategisk Forskning, SSF; Funding details: 871741; Funding details: National Natural Science Foundation of China, NSFC, 61722108; Funding text 1: This work was supported in part by the Ceniit–Linköping University, Swedish Research Council, in part by the Swedish Foundation for Strategic Research (SSF), in part by the Göran Gustafsson Foundation, in part by the Celtic-Plus sub-project SENDATE-EXTEND funded by Vin-nova, in part by the EU H2020 project TWILIGHT under Grant 871741, in part by the Vinnova funded project Centre for Software-Defined Optical Networks, in part by the National Natural Science Foundation of China under Grant 61722108, in part by the H2020 NEWMAN Project under Grant 752826, and in part by AoA ICT seed project and Genie project funded by Chalmers University of Technology Foundation. The Knut and Alice Wallenberg foundation is acknowledged for equipment funding and Tektronix for equipment loan.
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