Method of fabricating large optical preforms

Details Method of fabricating large optical preforms Method of fabricating large optical preforms

C - Chemistry, Metallurgy

03

C

117/85

C03C 17/02 (2006.01) C03B 37/014 (2006.01) C03B 37/018 (2006.01)

Patent

CA 1129727

M.S. Maklad-11 METHOD OF FABRICATING LARGE OPTICAL PREFORMS ABSTRACT OF THE DISCLOSURE A large optical preform is fabricated by rotating a platform about its axis while advancing the platform away from a series of nozzles. Each nozzle is arranged to generate an annular ring associated with the preform by a vapor phase oxidation technique. The vapor content in- troduced by each nozzle is tailored to provide a large diameter optical preform possessing step index, single mode or graded index capabilities. The preform thus pro- duced is then drawn into elongated optical fiber cables having the above described properties.

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