Resin optical waveguide
US10222554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2018 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A resin optical waveguide containing a core, an under cladding and an over cladding having refractive indices lower than that of the core, in which the resin optical waveguide has, at one end side thereof, a core-exposed section at which the over cladding is not present and the core is exposed and, of the under cladding, a portion corresponding to the core-exposed section has a core-neighboring region that satisfies the following (1) and (2):(1) the core-neighboring region is a region whose distance from the core is within x, and x is 5 μm or more and 20 μm or less; and(2) the core-neighboring region has a refractive index distribution that the refractive index at a side of an interface with the core is high and the refractive index at a far side from the interface with the core is low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.