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US 2023/0382779 A1Published application
Multi-core optical fiber preform, multi-core optical fiber preform production method, and multi-core optical fiber production method
AssigneeFujikura Ltd.
InventorsRyohei Fukumoto, Katsuhiro Takenaga
Life of this patent
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Abstract
A multi-core optical fiber preform includes: a rod-shaped main cladding body having one or more main inner holes; main core rods inserted into the one or more main inner holes; and a tip continuously-installed portion disposed at one end of the rod-shaped main cladding body and including a glass rod having no core rod or having one core rod.
Claims12
A multi-core optical fiber preform comprising:
- a rod-shaped main cladding body having one or more main inner holes;
- main core rods inserted into the one or more main inner holes;
- and
- a tip continuously-installed portion disposed at one end of the rod-shaped main cladding body and including a glass rod having no core rod or having one core rod.
1 more element
A multi-core optical fiber preform production method comprising:
- preparing a glass material unit in which main core rods are inserted into one or more main inner holes in a rod-shaped main cladding body;
- butt-connecting a glass rod having no core rod or having one core rod to one end portion of the glass material unit;
- and
- leaving a portion of the glass rod as a tip continuously-installed portion continuously disposed at the glass material unit and separating a remaining portion of the glass rod by fusing.
1 more element
Dependencies are inferred from the claim text.