Multicore fiber, optical fiber cable, and optical connector
US-2023036200-A1 · Feb 2, 2023 · US
Multicore fiber, optical fiber cable, and optical connector
US12092859B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12092859-B2 |
| Application number | US-202017757960-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 16, 2020 |
| Priority date | Dec 26, 2019 |
| Publication date | Sep 17, 2024 |
| Grant date | Sep 17, 2024 |
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- Title
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Abstract
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A multicore fiber includes: a cladding; and three or more and five or less cores disposed at rotationally asymmetric positions on a circumference centered at a center of the cladding. No core is disposed at the center of the cladding. Angles formed by adjacent ones of lines connecting the center of the cladding and respective ones of the cores are all larger than 60°.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multicore fiber comprising: a cladding; and four or five cores disposed at rotationally asymmetric positions on a circumference centered at a center of the cladding, wherein no core is disposed at the center of the cladding, angles formed by adjacent ones of lines connecting the center of the cladding and respective ones of the cores are all larger than 60°, the angles are all different, and a narrowest angle of the angles is not adjacent to a second narrowest angle of the angles. 2. The multicore fiber according to claim 1 , wherein two or more of the cores are disposed at linearly asymmetric positions with reference to a line passing through the center of the cladding and extending along a radial direction of the cladding. 3. The multicore fiber according to claim 2 , wherein a number of the cores is four. 4. An optical fiber cable comprising: a sheath; and the multicore fiber according to claim 2 in the sheath. 5. An optical connector comprising: a ferrule; and the multicore fiber according to claim 2 , wherein one end of the multicore fiber is disposed in a fiber insertion hole of the ferrule. 6. An optical fiber cable comprising: a sheath; and the multicore fiber according to claim 1 in the sheath. 7. An optical connector comprising: a ferrule; and the multicore fiber according to claim 1 , wherein one end of the multicore fiber is disposed in a fiber insertion hole of the ferrule. 8. The multicore fiber according to claim 1 , wherein a number of the cores is four. 9. A multicore fiber comprising: a cladding; and four or five cores disposed at rotationally asymmetric positions on a circumference centered at a center of the cladding, wherein no core is disposed at the center of the cladding, angles formed by adjacent ones of lines connecting the center of the cladding and respective ones of the cores are all larger than 60°, two angles of the angles are different from remaining angles, the two angles are different from each other, and all of the remaining angles are the same. 10. The multicore fiber according to claim 9 , wherein two or more of the cores are disposed at linearly asymmetric positions with reference to a line passing through the center of the cladding and extending along a radial direction of the cladding. 11. An optical fiber cable comprising: a sheath; and the multicore fiber according to claim 10 in the sheath. 12. An optical connector comprising: a ferrule; and the multicore fiber according to claim 10 , wherein one end of the multicore fiber is disposed in a fiber insertion hole of the ferrule. 13. The multicore fiber according to claim 9 , wherein a number of the cores is four. 14. An optical fiber cable comprising: a sheath; and the multicore fiber according to claim 9 in the sheath. 15. An optical connector comprising: a ferrule; and the multicore fiber according to claim 9 , wherein one end of the multicore fiber is disposed in a fiber insertion hole of the ferrule.
Assignees
Inventors
Classifications
Double reinforcement laying in straight line with optical transmission element · CPC title
Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448) · CPC title
Details of mounting fibres in ferrules; Assembly methods; Manufacture · CPC title
- G02B6/02042Primary
Multicore optical fibres · CPC title
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Frequently asked questions
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- What does patent US12092859B2 cover?
- A multicore fiber includes: a cladding; and three or more and five or less cores disposed at rotationally asymmetric positions on a circumference centered at a center of the cladding. No core is disposed at the center of the cladding. Angles formed by adjacent ones of lines connecting the center of the cladding and respective ones of the cores are all larger than 60°.
- Who is the assignee on this patent?
- Fujikura Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02B6/02042. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 17 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).