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Updated: Feb 22, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Space division multiplexing chip-to-chip quantum key distribution
Davide Bacco1, Yunhong Ding2, Kjeld Dalgaard3
1Technical University of Denmark, Department of Photonics Engineering, 2800, Kgs. Lyngby, Denmark. dabac@fotonik.dtu.dk.
Abstract:
Quantum cryptography is set to become a key technology for future secure communications. However, to get maximum benefit in communication networks, transmission links will need to be shared among several quantum keys for several independent users. Such links will enable switching in quantum network nodes of the quantum keys to their respective destinations. In this paper we present an experimental demonstration of a photonic integrated silicon chip quantum key distribution protocols based on space division multiplexing (SDM), through multicore fiber technology. Parallel and independent quantum keys are obtained, which are useful in crypto-systems and future quantum network.
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