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US 10,246,366 B2Granted
Method of manufacturing optical fiber base material and method of manufacturing optical fiber
AssigneeFujikura Ltd.
InventorsNobuo Oozeki, Kentaro Ichii, Tomofumi Arai
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Abstract
Provided is a method of manufacturing an optical fiber base material by an inside mounting method, including: a step of rotating and heating a glass tube fixed at two positions and supplying a gas into a through-hole of the glass tube, wherein in the step, the glass tube is warped so that an axis between respective fixed portions of the glass tube has a shape in which a catenary curve is reversed in the vertical direction.
Claims17
A method of manufacturing an optical fiber base material comprising steps of:
- (a) preparing a glass tube;
- and
- (b) rotating and heating the glass tube fixed at two positions and supplying a gas into a through-hole of the glass tube,
- wherein the glass tube is fixed such that an axis of the glass tube has a substantially inverted catenary curve shape in the vertical direction while the glass tube is heated.
1 more element
A method of manufacturing an optical fiber comprising steps of:
- preparing a glass tube;
- rotating and heating the glass tube fixed at two positions and supplying a gas into a through-hole of the glass tube to form an optical fiber base material, wherein the glass tube is fixed such that an axis of the glass tube has a substantially inverted catenary curve shape in the vertical direction while the glass tube is heated;
- and
- drawing the optical fiber base material.
1 more element
Dependencies are inferred from the claim text.