Transponder Aggregator-based optical loopback in a MD-ROADM
US8995832B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 2, 2013 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Nov 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0217
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present principles are directed to a transponder aggregator-based optical loopback in a multi-degree colorless, directionless, contention-less, reconfigurable optical add/drop multiplexer. The multiplexer includes a reconfigurable optical add/drop multiplexer section for performing connect operations for wavelength division multiplexing signals among all degrees. The section has a plurality of subsections. Each of the subsections corresponds to a respective one of the degrees and has an optical separator at an input side and an optical combiner at an output side. The multiplexer further includes a transponder aggregator section having a split-and-select switch-based transponder aggregator. The multiplexer also includes an optical line loopback having a connection path between the optical separator at the input side and the optical combiner at the output side of at least one of the subsections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.