Optical link protection using common modulation of multiple combined wavelengths
US9485012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/506
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical transmitter may include one or more lasers configured to provide a primary optical signal having a primary wavelength and a secondary optical signal having a secondary wavelength to a modulator via corresponding first and second modulator inputs. The modulator may combine the primary and secondary optical signals into a combined optical signal and modulate, with an electrical signal, the combined optical signal to provide a modulated optical signal to an optical filter. The optical filter may be configured to separate, from the modulated optical signal, a modulated primary optical signal having the primary wavelength and a modulated secondary optical signal having the secondary wavelength and provide the modulated primary optical signal to a primary optical link and the modulated secondary optical signal to a secondary optical link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.