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US 2014/0233881 A1Published application
Optical waveguide, optical interposer and light source
AssigneesNEC Corporation, Fujitsu Limited
InventorsNobuaki Hatori, Masashige Ishizaka, Takanori Shimizu
Life of this patent
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Abstract
An optical waveguide includes a substrate, a first core provided over the substrate and having a first taper region that extends from one side toward the other side and has a sectional area that decreases toward the other side, and a plurality of second cores provided over the substrate and over or under the first core with a first cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.
Claims20
An optical waveguide, comprising:
- a substrate;
- a first core provided over the substrate and having a first taper region that extends from one side toward the other side and has a sectional area that decreases toward the other side;
- and
- a plurality of second cores provided over the substrate and over or under the first core with a first cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.
1 more element
An optical interposer, comprising:
- a substrate;
- an optical waveguide provided on the substrate;
- an optical modulator provided on the substrate;
- and
- an optical detector provided on the substrate;
- wherein
- the optical waveguide includes:
- a first core provided over the substrate and having a first taper region extending from one side toward the other side and having a sectional area that decreases toward the other side;
- and
- a plurality of second cores provided over the substrate and over or under the first core with a first cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.
7 more elements
A light source, comprising:
- a substrate;
- an optical waveguide provided on the substrate;
- and
- a light emitter provided on the substrate;
- wherein
- the optical waveguide includes:
- a first core provided over the substrate and having a first taper region extending from one side toward the other side and having a sectional area that decreases toward the other side and;
- and
- a plurality of second cores provided over the substrate and over or under the first core with a first cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.
6 more elements
Dependencies are inferred from the claim text.