Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Patent
1993-01-28
1994-10-04
Jones, W. Gary
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
65144, 65427, 65 176, 65 173, C03B 1909
Patent
active
053522591
ABSTRACT:
The present invention provides a method of manufacturing an optical fiber preform having the steps of disposing a rod member made of a silica-based material within a cavity of a mold, followed by loading a molding material within the mold cavity, and applying pressure to the mold from the outside to form a porous layer on the surface of the rod member and, thus, to obtain a porous preform, wherein at least one end portion of the rod member extends outside the mold cavity in the step of applying pressure to the mold. The particular method permits manufacturing a high quality porous preform free from splits or cracks, making it possible to obtain a high quality optical fiber preform free from residual bubbles.
REFERENCES:
patent: 4501601 (1985-02-01), Haupt
patent: 4761390 (1988-08-01), Hartnett
patent: 5049175 (1991-09-01), Ross et al.
patent: 5078768 (1992-01-01), Aggarwal et al.
patent: 5185020 (1993-02-01), Satoh
Glastechnische Berichte, vol. 60, No. 3, Frankfurt, Germany, pp. 79-82, Dorn et al., "Glass Fibres from Mechanically shaped preforms".
Patent Abstracts of Japan, vol. 11, No. 267 (C-443)(2714) Aug. 28, 1987 & JP-A-62 65 947 (Tatsuta Electric Wire & Cable Co., Ltd.) Mar. 25, 1987.
Enomoto Noritsugu
Hihara Hiroshi
Morikawa Takayuki
Oku Masato
Sato Tsuguo
Hoffmann John M.
Jones W. Gary
The Furukawa Electric Co. Ltd.
LandOfFree
Method of manufacturing optical fiber preform does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing optical fiber preform, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing optical fiber preform will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-578708