Method for producing highly pure glass preform for optical fiber

Details Method for producing highly pure glass preform for optical fiber Method for producing highly pure glass preform for optical fiber

1985-03-04

1986-12-09

Schor, Kenneth M.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 182, C03B 37018, C03B 1906

Patent

active

046278672

ABSTRACT:
A method for producing a glass preform for an optical fiber by an outside vapor-phase deposition method, which comprises forming fine glass particles by jetting gaseous glass raw material and fuel gas from a first burner to deposit the particles on a seed rod to form a soot rod at such a temperature that a specific bulk density of the soot rod being formed is low and subsequently heating the soot rod by a second burner so as to increase the bulk density of the soot and then sintering the soot rod to obtain a transparent glass preform for an optical fiber, by which method, a highly pure glass preform is produced in a good deposition yield without cracking.

REFERENCES:
patent: 4230472 (1980-10-01), Schultz
patent: 4294601 (1981-10-01), Dabby et al.
patent: 4310339 (1982-01-01), Blankenship
patent: 4363647 (1982-12-01), Bachman
patent: 4378985 (1983-04-01), Powers

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