TY - GEN
T1 - High-Speed Chip-based Measurement-Device-Independent Quantum Key Distribution with Double-Scanning Method
AU - Cao, L.
AU - Luo, W.
AU - Hu, X. L.
AU - Jiang, C.
AU - Jin, Y. F.
AU - Wang, X. B.
AU - Kwek, L. C.
AU - Liu, A. Q.
N1 - Funding Information:
This work was supported by the Singapore Ministry of Education (MOE) Tier 3 grant (MOE2017-T3-1-001), the Singapore National Research Foundation (NRF) National Natural Science Foundation of China (NSFC) joint grant (NRF2017NRF-NSFC002-014).
Publisher Copyright:
© Optica Publishing Group 2022, © 2022 The Author(s)
PY - 2022/5
Y1 - 2022/5
N2 - Photonic integration offers a practical solution for wider deployment of quantum secure communication. Based on carrier-depletion modulators (CDMs) in silicon photonics, we design and fabricate high-speed transmitter chips and demonstrate its capability to implement measurement-device-independent quantum key distribution (MDI-QKD). In the proof-of-concept experiment, the quantum bit error rate (QBER) is as low as 0.85% in Z basis and 25.5% in X basis, respectively. With a double-scanning method, the optimized system shows a key rate per pulse of 1.65 × 10~4 over an emulated attenuation of 10 dB (corresponding to 50-km standard fiber) with 80% single-photon detection efficiency.
AB - Photonic integration offers a practical solution for wider deployment of quantum secure communication. Based on carrier-depletion modulators (CDMs) in silicon photonics, we design and fabricate high-speed transmitter chips and demonstrate its capability to implement measurement-device-independent quantum key distribution (MDI-QKD). In the proof-of-concept experiment, the quantum bit error rate (QBER) is as low as 0.85% in Z basis and 25.5% in X basis, respectively. With a double-scanning method, the optimized system shows a key rate per pulse of 1.65 × 10~4 over an emulated attenuation of 10 dB (corresponding to 50-km standard fiber) with 80% single-photon detection efficiency.
UR - http://www.scopus.com/inward/record.url?scp=85139975109&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85139975109
T3 - 2022 Conference on Lasers and Electro-Optics, CLEO 2022 - Proceedings
BT - 2022 Conference on Lasers and Electro-Optics, CLEO 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 Conference on Lasers and Electro-Optics, CLEO 2022
Y2 - 15 May 2022 through 20 May 2022
ER -