US 2005/0089288 A1 · Optical fiber and method of fabricating the same

Abstract

The present invention relates to an optical fiber, having holes extending along a longitudinal direction thereof, and capable of acquiring an optical transmission characteristic closer to a design value as well as a method of fabricating the optical fiber. The fabrication method comprises the steps of: preparing an optical fiber perform having a specific structure, and a drawing the prepared optical fiber perform with specific conditions. In the preparing step, the prepared optical fiber has a plurality of perform holes intended to serve as the holes. In drawing step, the optical fiber preform is drawn by the a drawing tension of 0.78 (N) or more while pressurizing the inside of the through holes of the optical fiber preform. Thereby, hole deformations of the obtained optical fiber can be prevented, so that it is made possible to achieve an optical transmission characteristic closer to a design value.

Claims13

Dependent claims

A method of fabricating an optical fiber having a plurality of holes extending along a longitudinal direction thereof, comprising the steps of:

preparing an optical fiber preform having a plurality of through holes intended to serve as the holes;
drawing said optical fiber preform by the drawing tension of 0.78 (N) or more while pressurizing the inside of the through holes of said optical fiber perform prepared.

Dependencies are inferred from the claim text.

Facts

Application

10/815,799Filed 2 Apr 2004

Priority

JP P2003-1020134 Apr 2003

Published

28 Apr 2005

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G02B 6/02338
Characterised by core or core-cladding interface features: structured core, e.g. core contains more than one material, non-constant refractive…
C03B 37/02781
Fibres composed of different sorts of glass, e.g. glass optical fibres: hollow fibres, e.g. holey fibres
G02B 6/02347
Characterised by cladding features, i.e. light confining region: longitudinal structures arranged to form a regular periodic lattice, e.g.…
G02B 6/02371
Characterised by cladding features, i.e. light confining region: cross section of longitudinal structures is non-circular

Optical fiber and method of fabricating the same

Life of this patent

Optical fiber and method of fabricating the same

Life of this patent

Abstract

Claims13