Quantum key distribution with dissipative Kerr soliton generated by on-chip microresonators

Abstract

Quantum key distribution (QKD) can distribute symmetric key bits between remote legitimate users with the guarantee of quantum mechanics principles. For practical applications, the compact and robust photonic components for QKD are essential, and there are increasing attention to integrate the source, detector and modulators on a photonic chip. However, the massive and parallel QKD based on wavelength multiplexing are still challenge, due to the limited coherent light sources on the chip. Here, we introduce the Kerr dissipative soliton in a microresonator, which provides the locked coherent frequency comb with 49GHz frequency spacing, for QKD. We demonstrate the parallel QKD by demulplexing the coherent comb lines form the soliton, and showing the potential of Gbps secret key rate if the hundreds of channels covering C and L bands are fully exploited. The demonstrated soliton based QKD architecture are compatible with the efforts of quantum photonic integrated circuits, which are compact, robust and low-cost, and provides a competitive platform of practical QKD chip.

References in corpus (28)

• Quantum cryptography: Public key distribution and coin tossing
• The Security of Practical Quantum Key Distribution
• Decoy State Quantum Key Distribution
• Optical frequency comb generation from a monolithic microresonator
• Temporal solitons in optical microresonators
• Beating the PNS attack in practical quantum cryptography
• Microresonator solitons for massively parallel coherent optical communications
• Secure Quantum Key Distribution
• Field test of quantum key distribution in the Tokyo QKD Network
• Ultrafast optical ranging using microresonator soliton frequency combs
• Fully integrated ultra-low power Kerr comb generation
• Secure quantum key distribution over 421 km of optical fiber
• Integrated micro-comb sources for quantum optical applications
• Soliton Microcomb Range Measurement
• Provably Secure and Practical Quantum Key Distribution over 307 km of Optical Fibre
• Universal dynamics and controlled switching of dissipative Kerr solitons in optical microresonators
• Stably accessing octave-spanning microresonator frequency combs in the soliton regime
• Field and long-term demonstration of a wide area quantum key distribution network
• 2-GHz clock quantum key distribution over 260 km of standard telecom fiber
• 10~Mb/s quantum key distribution
• Thermal and Nonlinear Dissipative-Soliton Dynamics in Kerr Microresonator Frequency Combs
• Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks
• Simple 2.5 GHz time-bin quantum key distribution
• Field test of the wavelength-saving quantum key distribution network
• Discrete-phase-randomized coherent state source and its application in quantum key distribution
• Practical gigahertz quantum key distribution robust against channel disturbance
• Maintenance-free Operation of WDM Quantum Key Distribution System through a Field Fiber over 30 Days
• Repetition rate tuning of soliton in microrod resonators

Cited by in corpus (7)

• Directly accessing octave-spanning dissipative Kerr soliton frequency combs in an AlN microring resonator
• Experimental demonstration of phase-matching and Sagnac effect in a millimeter-scale wedged resonator gyroscope
• Frequency-domain model of optical frequency-comb generation in optical resonators with second- and third-order nonlinearities
• Multicolor continuous-variable quantum entanglement in the Kerr frequency comb
• Long distance measurement using single soliton microcomb
• Calibration of cascaded phase shifters using pairwise scan method in silicon photonics integrated chip
• Security Analysis of Mode-Pairing Quantum Key Distribution with Flexible Pairing Strategy