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

49/77, 49/8, 49/

C03B 37/014 (2006.01) B62D 5/10 (2006.01) B62D 5/22 (2006.01) C03C 21/00 (2006.01)

Patent

CA 1296528

Abstract: A method for producing a glass preform for use in the fabrication of an optical fiber comprises adding fluorine to a soot preform in an atmosphere comprising a fluorine- containing compound at a temperature at which the soot pre- form is in the porous state. The soot preform is then heated in an atmosphere containing a fluorine-containing compound at a higher temperature to vitrify it to form a glass preform. An optical fiber homogeneously containing fluorine can be fabricated from this glass preform.

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