Dual rail compensation in phase encoded communication
US10862677B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | May 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0858
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
According to an example aspect of the present invention, there is provided an apparatus comprising a phase modulator configured to modify a phase of light incoming into the phase modulator, to generate phase-encoded light, a dual rail encoder configured to modify the phase-encoded light in dependence of a control signal, to thereby impart a polarization rotation compensation into the phase-encoded light, and a polarization rotator combiner coupled to the dual rail encoder, configured to convert dual rail light from the dual rail encoder into polarization encoded light, wherein the apparatus is arranged to transmit the polarization encoded light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.