Optical receiver and optical axis alignment method thereof
US9780885B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2017 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | May 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/6151
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical receiver comprises a package provided with an input window; a polarization-maintaining optical fiber fixable to the input window; a polarization beam splitter, disposed on the package, for inputting light outputted from the polarization-maintaining optical fiber and outputting first output light and second output light having respective polarization directions different from each other; a beam splitter, disposed on the package, for splitting the first output light; a first light-receiving element, optically coupled to the beam splitter, having two light-receiving parts corresponding to two kinds of the output light split by the beam splitter; and a second light-receiving element, disposed on the package, for receiving the second output light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.