Metropolitan Quantum Key Distribution with Silicon Photonics
Name
PhysRevX.8.021009.pdf
Size
1.62 MB
Format
Adobe PDF
Checksum (MD5)
f251f4af89ce032ad1c1650cc37dbf92
Author(s)
Lentine, Anthony
Cai, Hong
Long, Christopher M.
Boynton, Nicholas
Martinez, Nicholas
DeRose, Christopher
Grein, Matthew
Trotter, Douglas
Starbuck, Andrew
Pomerene, Andrew
Date Issued
April 2018
Journal
Physical Review X
Publisher
American Physical Society
Citation
Bunandar, Darius et al. "Metropolitan Quantum Key Distribution with Silicon Photonics." Physical Review X 8, 2 (April 2018): 021009
Version
Final published version
Abstract
Photonic integrated circuits provide a compact and stable platform for quantum photonics. Here we demonstrate a silicon photonics quantum key distribution (QKD) encoder in the first high-speed polarization-based QKD field tests. The systems reach composable secret key rates of 1.039 Mbps in a local test (on a 103.6-m fiber with a total emulated loss of 9.2 dB) and 157 kbps in an intercity metropolitan test (on a 43-km fiber with 16.4 dB loss). Our results represent the highest secret key generation rate for polarization-based QKD experiments at a standard telecom wavelength and demonstrate photonic integrated circuits as a promising, scalable resource for future formation of metropolitan quantum-secure communications networks.
MIT Department
Lincoln Laboratory
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevX.8.021009
