Waveguide and manufacturing method thereof
US11604313B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2021 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Jun 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide includes a core and a cladding. The core has an inlet on which light is incident. The core includes a front portion and a rear portion located between the front portion and the inlet. The front portion and the rear portion each have a thickness that is a dimension in a first direction and a width that is a dimension in a second direction. The first direction is orthogonal to a propagation direction of the light. The second direction is orthogonal to the propagation direction of the light and the first direction. The thickness of the front portion decreases with increasing distance from the inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.