公开(公告)号：AU3947102A

公开(公告)日：2002-06-24

申请号：AU3947102

申请日：2001-10-31

Applicant: CORNING INC

Inventor： LEHMAN MICHAEL J ,  SRIKANT V ,  STONE JEFFERY S

IPC: C03B37/014 ,  C03B37/018

Abstract: A method for doping silica soot with fluorine during laydown, including providing a bait rod, and providing a burner, wherein the burner emits a reactant flame. The method also including providing at least one first gas-feed separate from the burner, wherein the gas-feed supplies a first jet of fluorine-based gases, and depositing a layer of silica soot on the bait rod by vaporizing a silica producing gas within the reactant flame of the burner. The method further including supplying the first jet of fluorine-based gases to the silica soot deposited on to the bait rod via the first gas-feed subsequent to vaporizing at least a portion of the silica producing gas within the reactant flame of the burner.