BURNER FOR HIGH-EFFICIENCY OVERCLADDING AND OVERCLADDING DEVICE OF LARGE-APERTURE DIAMETER OPTICAL FIBER PREFORM UTILIZING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a high-efficiency burner and an overcladding device of an optical fiber perform utilizing the same.;SOLUTION: This high-efficiency burner 30 includes burner cap sections 231, burner body sections 232 existing on the inner side between the burner cap parts and fuel discharge sections (233 and 234) having constitution to be respectively separated by separating walls 235 arrayed to at least ≥2 stages on the inner side between the burner body sections in the burner for heating the optical fiber preform.;COPYRIGHT: (C)2001,JPO