Optical waveguide structure
US7457498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2813
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide structure has a single port on one input/output side, a plurality of ports on another input/output side and an S-curve optical waveguide portion arranged on the outermost side of the waveguide structure and including a first circular arc optical waveguide portion and a second circular arc optical waveguide portion connected thereto. The waveguide portion also has a third circular arc optical waveguide portion extending from a first splitting/coupling point side in the first circular arc waveguide portion toward the plural/ports side and having a curvature inverted relative to the first circular arc optical waveguide portion. At the first splitting/coupling point, a tangential line of the first circular arc optical waveguide portion and a tangential line of the third circular arc optical waveguide portion are parallel to and spaced from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.