OUTSIDE VAPOR DEPOSITION APPARATUS FOR MAKING OPTICAL FIBER PREFORM AND METHOD FOR MAKING OPTICAL FIBER PREFORM USING THE SAME

摘要

An Outside Vapor Deposition (OVD) apparatus for making an optical fiber preform with uniform deposition of silica particles through uniform heating to the overall length of the preform includes a mandrel having a predetermined length and driven to rotate and a burner for emitting a combustion gas together with a combustion gas toward the mandrel and burning the combustion gas to make silica particles to that the silica particles are deposited on a surface of the mandrel, wherein the burner has a length corresponding to the length of the mandrel and provides uniform temperature throughout the overall length of the mandrel at the same time.