Manufacture of optical fibre preforms

Details Manufacture of optical fibre preforms Manufacture of optical fibre preforms

C - Chemistry, Metallurgy

03

C

117/81, 204/96.3

C03C 17/245 (2006.01) C03B 37/018 (2006.01)

Patent

CA 1168937

Abstract In the ?anufacture of a glass optical fibre preform by the chemical vapour deposition of a coating of oxide material on the surface of an elongate galss substrate, in particular silica and one or more dopent oxides on a vitreous silica ?, a perforated tube is disposed coaxially with th?, providing an annular reaction space between ? and the substrate, and at least the oxide pr? vapours, such as halides, are passed through the pe?forations into the reaction space, and oxygen, optionally with an additional carrier gas, is also introduced into said space. The substrate, which may be a tube coated internally or a seed core coated externally, is maintained at an elevated temperature, and the coating forming reactuib us caused to take place in the annular space by generating energy in the space, so that a coating is formed simultaneously on the whole of the substrate surface. The energy for activiating the reaction ?ay be produced by a plasma, or a laser beam, and/or ex?ernal or internal heating, and/or gas combustion in the reaction space.

397211

Affiliated with

Also associated with

Rating

Manufacture of optical fibre preforms does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacture of optical fibre preforms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of optical fibre preforms will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1207614