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) G02B 6/00 (2006.01)

Patent

CA 1258408

- 1 - Abstract: A glass preform for an optical fiber having a homogeneous distribution of bulk density in its radial direction is produced by a method comprising forming fine glass particles by jetting a gaseous glass material and a fuel gas from a burner. The glass particles are deposited on a seed rod to form a soot rod, while measuring the temperature of the part of the soot rod on which the glass particles are being deposited. This temperature is kept constant by varying the distance of the rod from the burner. The soot rod is finally sintered to obtain a transparent glass preform. The result is a preform of improved, and particularly, more uniform, characteristics.

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