Secure optical communication and target designation using frequency tuning, hopping , and encoding
US10637585B1 · kind B1 · utility
1Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2019 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Mar 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1129
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The system and method for secure optical communication, laser communication, and target designation. The system locks lasers at an absolute frequency reference and uses frequency tuning, frequency hopping, and frequency encoding techniques for optical communications. The system encodes information in the frequency context. An optional notch filter is used on a receiver to reduce “blinding” or saturation by adversaries. The system hops frequencies around an atomic reference. In some cases the system uses a frequency comb and a comb line of the second.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.