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US 2014/0233901 A1Published application
Spot size converter, light source, optical transmitter, optical receiver and optical transmitter-receiver
AssigneesNEC Corporation, Fujitsu Limited
InventorsNobuaki Hatori, Masashige Ishizaka, Takanori Shimizu
Life of this patent
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Abstract
A spot-size converter includes a substrate, a first core provided over the substrate, and second and third cores provided over the substrate and over or under the first core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.
Claims16
A spot-size converter, comprising:
- a substrate;
- a first core provided over the substrate;
- and
- second and third cores provided over the substrate and over or under the first core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.
1 more element
A light source, comprising:
- a substrate;
- a spot-size converter provided on the substrate;
- and
- a light emitter provided on the substrate;
- the spot-size converter including:
- a first core provided over the substrate;
- and
- second and third cores provided over the substrate and over or under the first core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core;
- the light emitter outputting light toward the spot-size converter.
6 more elements
An optical transmitter, comprising:
- a substrate;
- a spot-size converter provided on the substrate;
- a light emitter provided on the substrate;
- and
- an optical modulator provided on the substrate;
- the spot-size converter including:
- a first core provided over the substrate;
- and
- second and third cores provided over the substrate and over or under the first core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core;
- the light emitter outputting light toward the spot-size converter;
- the optical modulator modulating light outputted from the spot-size converter.
8 more elements
An optical receiver, comprising:
- a substrate;
- a spot-size converter provided on the substrate;
- and
- an optical detector provided on the substrate;
- the spot-size converter including:
- a first core provided over the substrate;
- and
- second and third cores provided over the substrate and over or under the first core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core;
- the optical detector detecting light outputted from the spot-size converter.
6 more elements
An optical transmitter-receiver, comprising:
- a substrate;
- first and second spot-size converters provided on the substrate;
- a light emitter provided on the substrate;
- an optical modulator provided on the substrate;
- and
- an optical detector provided on the substrate;
- the first spot-size converter including:
- a first core provided over the substrate;
- and
- second and third cores provided over the substrate and over or under the first core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core;
- the second spot-size converter including:
- a fifth core provided over the substrate;
- and
- sixth and seventh cores provided over the substrate and over or under the fifth core with a cladding layer sandwiched therebetween and extending in parallel to the substrate and the fifth core;
- the light emitter outputting light toward the first spot-size converter;
- the optical modulator modulating light outputted from the first spot-size converter;
- the optical detector detecting light outputted from the second spot-size converter.
14 more elements
Dependencies are inferred from the claim text.