0936194-A1 is referenced by 10 patents and cites 6 patents.

An external deposit on an optical fiber preform is viscosity matched with the outer periphery of an initial preform by doping. An optical fiber preform production process comprises adjusting the viscosity of an externally deposited silica-based layer to that of the outer periphery of a silica-based initial preform by addition of calcium fluoride, magnesium fluoride, aluminum fluoride, boron oxide or aluminum oxide. CaF2, MgF2 or AlF3 is added in amount (calculated as Ca, Mg or Al) 5-100 ppm by wt. of silica or B2O3 or Al2O3 is added in amount (calculated as B or Al) 0.01-1% by wt. of silica.

Title
Process for external deposition of doped silica on an optical fibre preform
Application Number
EP19990400323 19990211
Publication Number
0936194 (A1)
Application Date
February 11, 1999
Publication Date
August 18, 1999
Inventor
Meilleur Rosine
FR
Jourdier Pierryle
FR
Jolly Jacques
FR
Fauche Remi
FR
Chariot Jean Francois
FR
Lavallade Christelle
FR
Saugrain Jean Maxime
FR
Campion Jean Florent
FR
Assignee
Cit Alcatel
FR
IPC
C03B 37/014
C03B 37/012
G02B 06/44
G02B 06/02
C03C 13/00
C03B 37/018
C03B 37/012
G02B 06/00
G02B 06/44
G02B 06/036
C03C 13/04
C03B 37/018
C03B 37/012
G02B 06/00
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