Optical waveguide, opto-electric hybrid board, producing method of optical waveguide, producing method of opto-electric hybrid board, and opto-electric hybrid module
US11119274B2 · kind B2 · utility
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1References
10Claims
0Family size
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Key dates
| Filing date | Aug 22, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12004
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide includes a core extending in a transmission direction of light, a clad covering the core along the transmission direction, and a mixing layer containing a material for the core and a material for the clad on the interface between the core and the clad, and the mixing layer includes a plurality of regions each having a different thickness in the transmission direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.