| Autor: |
Darius Bunandar, Anthony Lentine, Catherine Lee, Hong Cai, Christopher M. Long, Nicholas Boynton, Nicholas Martinez, Christopher DeRose, Changchen Chen, Matthew Grein, Douglas Trotter, Andrew Starbuck, Andrew Pomerene, Scott Hamilton, Franco N. C. Wong, Ryan Camacho, Paul Davids, Junji Urayama, Dirk Englund |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Physical Review X, Vol 8, Iss 2, p 021009 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2160-3308 |
| DOI: |
10.1103/PhysRevX.8.021009 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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