Conference paper
Co-existence of 87 Mbit/s quantum and 10 Gbit/s classical communications in 37-core fiber
Department of Photonics Engineering, Technical University of Denmark1
Japan National Institute of Information and Communications Technology2
Nagoya University3
Center for Macroscopic Quantum States, Department of Physics, Technical University of Denmark4
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark5
Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark6
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark7
Machine Learning in Photonic Systems, Department of Photonics Engineering, Technical University of Denmark8
Department of Physics, Technical University of Denmark9
Quantum Physics and Information Technology, Department of Physics, Technical University of Denmark10
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark11
Fujikura Ltd.12
...and 2 moreQuantum key distribution (QKD) guarantees unconditional security and has thus been intensely studied both from a theoretical and an experimental point of view [1]. However, limitations due to transmission loss and noise are still detrimental for these systems performance in terms of reachable distance and key rates, having so far confined QKD implementations to the use of dedicated channels and hence reduced a successful integration with the classical network, with few exceptions [2-6].
In this work we demonstrate a step forward in the co-existence of QKD with classical bright signals, exploiting a 7.9-km long 37-core heterogeneous multicore fiber (MCF) [7], and a space division multiplexing (SDM) technique to achieve a total of 87 Mbit/s secret key generation rate (SKR) in the finite key scenario with a simultaneous co-propagating classical signal of 10 Gbit/s.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2019 |
| Pages: | 1-1 |
| Proceedings: | 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference |
| ISBN: | 1728104696 , 172810470X , 172810470x , 9781728104690 and 9781728104706 |
| Types: | Conference paper |
| DOI: | 10.1109/CLEOE-EQEC.2019.8871492 |
| ORCIDs: | Bacco, D. , Cozzolino, D. , Da Ros, F. , Ding, Y. , Neergaard-Nielsen, J. S. , Galili, M. , Rottwitt, K. , Andersen, U. L. , Morioka, T. and Oxenlowe, L. K. |
