Submarine reconfigurable optical add/drop multiplexer with passive branching unit
US9813182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Sep 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0208
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for data transport, including submarine reconfigurable optical add/drop multiplexers, branching units configured to receive signals from trunk terminals (TTs), and dummy light filters configured to pass useful signals through the filters, and to reflect dummy light. Optical interleavers are configured to separate useful signals into two or more groups of optical channels, and the optical channels are set to a frequency of either a left or a right portion of a total channel bandwidth. De-interleavers merge signal groups together from trunk terminals, and lasers at each of the transponders at the source terminals are configured to adjust a destination of a channel by fine tuning a frequency or wavelength of the one or more signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.