Quantum key distribution over multicore fiber

Abstract

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.

7 pages, 5 figures

References in corpus (14)

• Quantum cryptography: Public key distribution and coin tossing
• The Security of Practical Quantum Key Distribution
• Space Division Multiplexing in Optical Fibres
• Field test of quantum key distribution in the Tokyo QKD Network
• Quantum key distribution and 1 Gbit/s data encryption over a single fibre
• Field and long-term demonstration of a wide area quantum key distribution network
• High speed single photon detection in the near-infrared
• Coexistence of high-bit-rate quantum key distribution and data on optical fiber
• Efficient decoy-state quantum key distribution with quantified security
• Metropolitan all-pass and inter-city quantum communication network
• Coexistence of continuous variable QKD with intense DWDM classical channels
• Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks
• Quantum secured gigabit optical access networks
• Quantum Metropolitan Optical Network based on Wavelength Division Multiplexing

Cited by in corpus (26)

• Practical challenges in quantum key distribution
• Photonic quantum information processing: a review
• High-Dimensional Quantum Key Distribution based on Multicore Fiber using Silicon Photonic Integrated Circuits
• Quantum information processing with space-division multiplexing optical fibres
• High-dimensional decoy-state quantum key distribution over 0.3 km of multicore telecommunication optical fibers
• Boosting the secret key rate in a shared quantum and classical fibre communication system
• Long-distance transmission of quantum key distribution coexisting with classical optical communication over weakly-coupled few-mode fiber
• Experimental wavelength-space division multiplexing of quantum key distribution with classical optical communication over multicore fiber
• Space division multiplexing chip-to-chip quantum key distribution
• Intercore spontaneous Raman scattering impact on quantum key distribution in multicore fber
• Continuous-Variable Quantum Key Distribution over 15 km Multi-Core Fiber
• Quantum key establishment via a multimode fiber
• Experimental space-division multiplexed polarization-entanglement distribution through 12 paths of a multicore fiber
• Modeling Optical Fiber Space Division Multiplexed Quantum Key Distribution Systems
• Information processing at the speed of light
• Self-testing mutually unbiased bases in higher dimensions with space-division multiplexing optical fiber technology
• The future of secure communications: device independence in quantum key distribution
• Fully autocompensating high-dimensional quantum cryptography by optical phase conjugation
• Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers
• Implementation of space-division multiplexed entanglement-based quantum cryptography over multicore fiber
• Metro-scale QKD using multimode fiber
• Buried Stressor Engineering for Position-Controlled InGaAs Quantum Dots with Local Density Variation for Integrated Quantum Photonics
• Hybrid classical-quantum communication networks
• Inter-Core Crosstalk Impact of Classical Channels on CV-QKD in Multicore Fiber Transmission
• Multi-core fiber integrated multi-port beamsplitters for quantum information processing
• Multichannel Hybrid Quantum Cryptography for Submarine Optical Communications