Secured fiber link system
US10763962B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/052
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for securing communication over an optical fiber are disclosed. The system includes a transmit spatial multiplexer configured to couple a plurality of optical signals into respective ones of a plurality of spatial paths of an optical fiber, each of the spatial paths being able to carry an optical signal; wherein at least one of the plurality of optical signals is an optically modulated version of a desired sequence of information that is intended to be transferred over the optical fiber; and wherein at least one of the plurality of optical signals is an optical chaff signal; whereby a tap along the fiber cannot determine the transmitted desired sequence of information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.