Title:
【発明の名称】光ファイバの製造方法および製造装置
Document Type and Number:
Japanese Patent JP3085953
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To simply produce a low transmission loss optical fiber having restrained polarization mode dispersion. SOLUTION: An optical fiber preform is formed by melt spinning to obtain a bare wire for an optical fiber and then the bare wire is coated with a resin to form an optical fiber wire 22. Then twists are imparted to the wire 22 by reciprocating the roller in a direction along its rotating shaft 11a to make the wire 22 roll on the groove while moving the wire 22 on the groove of a rotating roller 11 having the V-shaped groove 12 or the U-shaped groove on a roller surface. Swaying motion may be conducted by using the rotating roller 11 having a flat groove on a roller surface and tilting the roller 11 in one direction in such a way that the rotating shaft 11a is at an arbitrary angle to its horizontal direction and then tilting the roller 11 in the opposite direction in such a way that the rotating shaft is at an arbitrary angle to its horizontal direction.
Inventors:
Tsurusaki Koji
Koichi Harada
Koichi Takahashi
Koichi Harada
Koichi Takahashi
Application Number:
JP21821099A
Publication Date:
September 11, 2000
Filing Date:
July 30, 1999
Export Citation:
Assignee:
Fujikura Ltd.
International Classes:
C03B37/12; C03B37/03; C03C25/10; G02B6/00; G02B6/44; (IPC1-7): C03B37/12; C03C25/10; G02B6/00; G02B6/44
Domestic Patent References:
| JP8295528A | ||||
| JP6171970A |
Attorney, Agent or Firm:
Masatake Shiga (3 outside)