Method of manufacturing coupled-core multi-core fiber
AssigneeSumitomo Electric Industries, Ltd.
InventorsTetsuya NAKANISHI, Takuji NAGASHIMA
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Abstract
A coupled-core multi-core fiber in which an inter-core distance is stabilized is manufactured. A method of manufacturing a coupled-core multi-core fiber includes forming a second cladding base material by depositing glass particulates on an outer periphery of a first cladding base material and sintering the glass particulates. The first cladding base material has a hydroxyl group concentration that is less than or equal to 10 ppb; obtaining a ground rod by grinding an outer periphery of the second cladding base material; and forming holes in the first cladding base material in the ground rod, inserting a core base material into each of the holes, and obtaining an assembly.
Claims6
A method of manufacturing a coupled-core multi-core fiber, comprising:
- forming a second cladding base material by depositing glass soot on an outer periphery of a first cladding base material and sintering the glass soot, the first cladding base material having a hydroxyl group concentration that is less than or equal to 10 ppb;
- obtaining a ground rod by grinding an outer periphery of the second cladding base material;
- forming holes in the first cladding base material in the ground rod;
- and
- obtaining an assembly by inserting a core base material into each of the holes.
Dependencies are inferred from the claim text.