Subsea optical communication system dual polarization idler
US9154258B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2014 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Apr 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/02212
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed including a subsea link idler apparatus comprising at least one data laser generating a first laser beam as a data signal, having a first frequency within a first data channel bandwidth slot; a first continuous wave laser generating a second laser beam with a first polarization and a second frequency being within a second data channel bandwidth slot; a second continuous wave laser generating a third laser beam with a second polarization different from the first polarization and a third frequency being offset from the second frequency and being within the second data channel bandwidth slot; a polarization beam combiner positioned in paths of the second and third laser beams combining the second and third laser beams into an idler signal; and a transmitter receiving and transmitting the data signal and idler signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.