QKD cascaded network with loop-back capability
US7787625B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 30, 2005 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jan 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A quantum key distribution (QKD) cascaded network with loop-back capability is disclosed. The QKD system network includes a plurality of cascaded QKD relays each having two QKD stations Alice and Bob. Each QKD relay also includes an optical switch optically coupled to each QKD station in the relay, as well as to input ports of the relay. In a first position, the optical switch allows for communication between adjacent relays and in a second position allows for pass-through communication between the QKD relays that are adjacent the relay whose switch is in the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.