Method for producing glass preform for optical fiber

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

C - Chemistry, Metallurgy

03

B

117/85

C03B 37/018 (2006.01) C03B 37/014 (2006.01) C03C 13/04 (2006.01) G02B 6/00 (2006.01)

Patent

CA 1266402

- 1 - Abstract: The invention provides a method for producing a glass preform, which method comprises forming a soot preform of fine glass particles comprising SiO2 by flame hydrolysis or solution hydrolysis of a starting glass material and sintering the soot preform in an atmosphere containing at least SiF4 to form a glass preform which shows no absorption increases due to the presence of impurities and has a sufficiently low attenuation of light transmission.

481473

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