Method of producing an optical fiber

Details Method of producing an optical fiber Method of producing an optical fiber

C - Chemistry, Metallurgy

03

B

117/85

C03B 37/018 (2006.01)

Patent

CA 1107576

A METHOD OF PRODUCING AN OPTICAL FIBER ABSTRACT OF THE DISCLOSURE Disclosed is an improved method of producing an optical fiber with a low transmission loss for use in an optical communication system. The method comprises a chemical vapor deposition process wherein starting materials in gas phase are oxidized to form a soot on a glass substrate and, then, the soot deposited on the substrate is vitrified in an atmosphere of an inert gas which is easily dissolved in a glass. A preferable soot contains silicon dioxide, a first dopant for effecting an increase of the refraction index of the silicon dioxide and a second dopant for effecting a reduction of the vitrification temperature of the soot. - 1 -

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