Title:
PRODUCTION OF GLASS PREFORM FOR OPTICAL FIBER
Document Type and Number:
Japanese Patent JPH11180719
Kind Code:
A
Abstract:
To provide the producing method of a glass article in which a high concn. additive is uniformly added to a core.
In the production method of the glass article for the optical fiber having the core and a clad, a porous soot body consisting essentially of SiO2 is formed on an inner wall of a glass pipe becoming the clad by a gas phase synthesizing method, and a solution in which particulates of the additive are dispersed is impregnated to the porous soot body, then the material is dried, subjected to heat-clarifying treatment and made into solid.
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Inventors:
ISHIKAWA SHINJI
ENOMOTO TADASHI
KASHIWADA TOMONORI
KADOI MOTOTAKA
ENOMOTO TADASHI
KASHIWADA TOMONORI
KADOI MOTOTAKA
Application Number:
JP35438897A
Publication Date:
July 06, 1999
Filing Date:
December 24, 1997
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
G02B6/00; C03B8/04; C03B37/014; C03B37/018; C03C3/06; C03C23/00; H01S3/06; H01S3/10; (IPC1-7): C03B8/04; C03B37/014; G02B6/00
Attorney, Agent or Firm:
Ryoichi Hagiwara (2 others)
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