Method for making index-profiled optical device

Details Method for making index-profiled optical device Method for making index-profiled optical device

C - Chemistry, Metallurgy

03

B

117/86

C03B 37/018 (2006.01) C03B 37/014 (2006.01)

Patent

CA 1284442

Abstract of the Disclosure Glass preforms for optical fibers or the like having refractive index profiles which vary in stepped or graded fashion across the preform, are made from porous glass preforms by introducing a first dopant into the porous preform during manufacture, partially sintering the preform to selectively modify the internal surface area thereof, introducing a second vapor-infusible dopant into the selectively sintered preform to cause selective doping of the porous glass, and then consolidating the resulting doped preform to clear glass.

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