Method and apparatus for quantum cryptography
US10367638B2 · kind B2 · utility
3Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 16, 2013 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for use in quantum cryptographic applications are disclosed. An optical signal having a first wavelength is encoded for quantum cryptography at a stage where the optical signal is on at least two signal paths. The wavelength of the encoded optical signal on the at least two signal paths is converted to a second wavelength before the optical signal is encoded for transmission. Encoding for transmission is applied to the optical signal on the second wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.