Spatial division multiplexed optical communication systems and amplifiers for the same
US10135221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2016 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Sep 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/052
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Optical amplifier assembly for spatial division multiplexing (SDM) optical communication systems. Each optical amplifier assembly includes a single pump assembly configured for causing amplification of signals traveling on separate fiber paths in different directions. Each fiber path includes a plurality of spatial dimensions. The single pump assembly includes a plurality of pump sources to provide redundancy and the optical amplifier assembly further includes splitters for splitting outputs of the pump sources to amplifiers coupled to the different spatial dimensions. Different modulation formats may be used on the different spatial dimensions with different pump power being provided to each of the modulation formats. Amplifiers with complementary outputs may be coupled to average out gain deviations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.