Optical 90 degree hybrid circuit
US11982839B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2020 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/61
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
To provide an optical 90-degree hybrid formed of a silicon waveguide capable of suppressing an optical loss and a phase error, and facilitating electronic packaging and optical packaging. In the optical 90-degree hybrid circuit including two optical branching units facing each other and two optical coupling units facing away from each other, four arm waveguides are arranged including bent waveguides each of which guides an output light of the optical branching unit to the optical coupling unit, and is formed in a curved shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.