Multicore fiber and method of manufacture therefor
AssigneeFurukawa Electric Co., Ltd.
InventorKazunori Mukasa
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Abstract
A method of manufacturing a multicore fiber includes: an initial-preform forming process of forming an initial preform by arranging in an array a plurality of core rods each including a core portion and a cladding portion formed around outer periphery of the core portion; and an optical fiber manufacturing process of manufacturing an optical fiber from the initial preform. Further, the core rods include a plurality of holes, and the core rods are arranged in a manner that one hole is arranged between two core portion adjacent to each other in the initial-preform forming process.
Claims12
A multicore fiber comprising:
- a plurality of core portions;
- and
- a cladding portion formed around an outer periphery of the core portions, wherein
- the cladding portion includes a hole that is arranged between two core portions adjacent to each other, and
- a distance between the hole and one of the two core portions differs from a distance between the hole and another of the two core portions.
A method of manufacturing a multicore fiber comprising:
- an initial-preform forming process of forming an initial preform by arranging in an array a plurality of core rods each including a core portion and a cladding portion formed around outer periphery of the core portion;
- and
- an optical fiber manufacturing process of manufacturing an optical fiber from the initial preform, wherein
- the core rods include a plurality of holes, and
- the core rods are arranged in a manner that one hole is arranged between two core portion adjacent to each other in the initial-preform forming process.
A method of manufacturing a multicore fiber comprising:
- an initial-preform forming process of forming an initial preform by arranging a plurality of core rods each including a core portion and a cladding portion formed around an outer periphery of the core portion such that each core rod is adjacent to N core rods where N is an integer greater than two;
- and
- an optical fiber manufacturing process of manufacturing an optical fiber from the initial preform, wherein
- each of the core rods includes N or less holes, and
- the core rods are arranged such that one hole is positioned between two core portions adjacent to each other in the initial preform forming process.
Dependencies are inferred from the claim text.