Method of manufacturing silica glass optical waveguide preform

Details Method of manufacturing silica glass optical waveguide preform Method of manufacturing silica glass optical waveguide preform

1991-09-11

1992-12-08

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 31, 65 32, 264174, C03C 2502, C03B 37023

Patent

active

051694212

ABSTRACT:
An extruding apparatus having at least two independent inlet ports, one outlet port communicating with the inlet ports, and at least two passages connecting the inlet ports with the outlet port, in which a section of a joint portion of the passages has a central portion and an outer peripheral portion which are concentrically arranged, is prepared. A core material is supplied to one of the passages communicating with the central portion of the joint portion from a corresponding inlet port, and a cladding material is supplied to the other passage communicating with the outer peripheral portion from a corresponding inlet port, thereby causing the two materials to join each other at the joint portion. An integral shaped body having a portion corresponding to a core at its central portion and a portion corresponding to a cladding around the central portion is extruded from the outlet port. Water and a binder and other impurities are removed from the shaped body, and the resultant body is consolidated.

REFERENCES:
patent: Re31868 (1985-04-01), Beasley et al.
patent: 4161500 (1979-07-01), Schleinitz et al.
patent: 4253731 (1981-03-01), Anderson et al.
patent: 4381141 (1983-04-01), Sakuragi et al.
patent: 4678274 (1987-07-01), Fuller
patent: 4685946 (1987-08-01), Derks et al.
patent: 4729777 (1988-03-01), Mimura et al.
patent: 4801186 (1989-01-01), Wagatsuma et al.
patent: 4865418 (1989-09-01), Takahashi et al.
patent: 5076653 (1991-12-01), Kayashima et al.
Glass Fibres From Mechanically Shaped Preforms, Dorn et al, Glastech, Ber. 60 (1987) No. 3. pp. 79`82.
"Mechanical Shaping of Preforms for Low Loss at Low Cost", R. Dorn et al, Journal of Optical Communications, No. 1, Mar. 1989, pp. 2-5.
"Mechanically Shaped Preforms for Optical Fiber Production", R. Dorn, Electrical Communication, 59 (1985), No. 4, ppo. 396-400.

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