Method of drawing glass optical waveguides

Details Method of drawing glass optical waveguides Method of drawing glass optical waveguides

C - Chemistry, Metallurgy

03

B

88/97

C03B 37/025 (2006.01) C03B 37/014 (2006.01) C03B 37/027 (2006.01)

Patent

CA 1126066

METHOD OF DRAWING GLASS OPTICAL WAVEGUIDES Abstract of the Disclosure A method of making glass optical waveguides by the flame hydrolysis technique. Particles of glass soot pro- duced by flame hydrolysis are deposited on the outside surface of a mandrel to form a porous preform. The soot particles closer to the mandrel have a refractive index greater than that of the soot disposed toward the outer surface of the preform. The mandrel is removed and the resultant hollow soot preform is supported in a draw furnace through which a helium-rich gas flows. The preform is heated to a temperature sufficient to cause said soot to consolidate and simultaneously permit an optical waveguide filament to be drawn therefrom.

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