Optical hybrid
US10520672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2018 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Oct 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/1215
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical circuit capable of operating as a 90° optical hybrid includes a phase-symmetric optical splitter and a 90° optical splitter, and two 2×2 optical couplers as optical combiners. The input ports of the optical combiners and the output ports of the optical splitters face a common area therebetween, with the optical splitters interposed between optical combiners as viewed along the circumference of the common area. The output ports of each optical splitter is connected to closest input ports of the optical combiners with optical waveguides of a same length. The length of the waveguides may be minimized when the optical couplers and the optical splitters are disposed in a cross-like configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.