Burner and apparatus for over-cladding a rod pre-form with a tube for optical fibres

摘要

Disclosed is a high efficiency burner 230 and an apparatus for over-cladding an optical fiber pre-form using the same. The high efficiency burner 230 heating an optical fiber pre-form includes burner covers 231, burner bodies 232 arranged between the burner covers 231, and fuel dischargers 233, 234 arranged in at least two rows between the burner bodies 232, and divided by a partition 235, respectively.