Title:
METHOD OF MANUFACTURING OPTICAL FIBER AND APPARATUS OF MANUFACTURING OPTICAL FIBER
Document Type and Number:
Japanese Patent JP2023128453
Kind Code:
A
Abstract:
To provide a method of manufacturing an optical fiber which efficiently cools a wiredrawn optical fiber bare wire.SOLUTION: A method of manufacturing an optical fiber includes the steps of: melting an optical fiber base material and wiredrawing an optical fiber bare wire; changing a travel direction of the optical fiber bare wire by at least one non-contact guide while cooling the optical fiber bare wire; and coating the optical fiber bare wire with a resin to make an optical fiber element wire. In the step of cooling, gas is ejected from the inside of the non-contact guide toward the optical fiber element wire. The gas is dry air the dew point of which is controlled at 0°C or lower.SELECTED DRAWING: Figure 1
Inventors:
YOSHIKAWA SATOSHI
Application Number:
JP2022032803A
Publication Date:
September 14, 2023
Filing Date:
March 03, 2022
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
C03B37/035; C03B37/07; C03C25/104; G02B6/02; G02B6/44
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
▲高▼木 邦夫
Shotaro Terazawa
Yoshiki Kuroki
▲高▼木 邦夫
Shotaro Terazawa