Systems and methods for identifying polarization/quadrature channels in dual-polarization coherent optical transmission
US11184203B2 · kind B2 · utility
1Cited by
3References
20Claims
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Key dates
| Filing date | Oct 20, 2020 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Oct 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2278
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Described are systems and methods for identifying the phase and polarization of independent modulation streams in quadrature channels of a coherent transmission system by using digital code. As a result, phase rotation and polarization of streams that during transmission may have become rotated and swapped around in the channel are correctly labeled and depermuted according to a known and predictable order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.