Coherent receiver based virtual optical spectrum analyzer
US9793984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Apr 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A coherent receiver adapted to operate as an Optical Spectrum Analyzer (OSA) includes an optical front end adapted to receive an optical signal and to mix the optical signal with a local laser; a photodetector block coupled to the optical front end and adapted to receive an output of the optical front end and provide an output corresponding to spectral components of the optical signal; and a controller coupled to the optical front end and the photodetector block, wherein the controller is adapted to operate in an OSA mode to sweep the local laser across a portion of optical spectrum to perform an OSA measurement while not performing data demodulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.