Journal
OPTICS EXPRESS
Volume 24, Issue 8, Pages 8081-8087Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.008081
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Funding
- EPSRC CDT in Photonic Systems Development
- EPSRC [EP/H022384/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1635658, EP/H022384/1] Funding Source: researchfish
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We present the first quantum key distribution (QKD) experiment over multicore fiber. With space division multiplexing, we demonstrate that weak QKD signals can coexist with classical data signals launched at full power in a 53 km 7-core fiber, while showing negligible degradation in performance. Based on a characterization of intercore crosstalk, we perform additional simulations highlighting that classical data bandwidths beyond 1Tb/s can be supported with high speed QKD on the same fiber. (C) 2016 Optical Society of America
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