Methods and apparatus for dual polarisation optical communication
US10938500B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2016 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Dec 12, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/67
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for dual polarisation optical transmission is disclosed. The method comprises splitting a continuous wave light source into first and second sub-channels, optically modulating each sub-channel with a data signal, and superimposing a first pilot tone onto the first optically modulated sub-channel and a second pilot tone, different from the first pilot tone, onto the second optically modulated sub-channel. The method further comprises polarisation multiplexing the first and second sub-channels to form a polarisation multiplexed signal, in which the first and second sub-channels have orthogonal states of polarisation, and transmitting the polarisation multiplexed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.