Apparatus and method for stablizing quantum cryptography system
US10110378B2 · kind B2 · utility
6Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2016 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jan 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for stabilizing a quantum cryptography system, which includes: determining whether the quantum cryptography system operates in a stabilized state, on the basis of a bit error rate or a key rate of the quantum cryptography system; and readjusting an arrival time of a gate pulse or a laser operation time so that an arrival time of a single photon for a photon detector is aligned with the arrival time of the gate pulse, when the quantum cryptography system does not operate in a stabilized state. Here, the quantum cryptography system may be a two-way quantum cryptography system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.