公开(公告)号：US4597785A

公开(公告)日：1986-07-01

申请号：US636525

申请日：1984-08-01

申请人： Kamran Karbassiyoon ,  Francis I. Akers ,  Larry J. Raplee ,  Daniel G. Fletcher

发明人： Kamran Karbassiyoon ,  Francis I. Akers ,  Larry J. Raplee ,  Daniel G. Fletcher

IPC分类号： C03B37/018 ,  C03B37/012 ,  C03B37/07

CPC分类号： C03B37/01869 ,  C03B37/01853

摘要： An arrangement for collapsing tubular formations into optical preforms includes a control arrangement which controls the ratio of hydrogen to oxygen in an oxyhydrogen burner flame during the collapsing operation toward overabundance of hydrogen when it is desired to increase the degree of evaporation of glass from the outer surface of a tubular proportion being collapsed. This arrangement is used for bringing the ratio of the cross-sectional area of the core region to that of the cladding region in an optical preform resulting from the collapse into or close to a predetermined range, regardless of the initial value of this ratio in the original tubular formation, by evaporating more or less of the glass from the outside of the tubular formation during the collapse.

摘要翻译： 用于将管状结构折叠成光学预成型件的布置包括控制装置，其控制在氢化氢燃烧器火焰期间的氢气与氧气在塌缩操作期间对于过度氢气的比例，当期望增加玻璃从外表面蒸发的程度时 的管状部分被塌缩。 这种布置用于使光纤预制件中的芯部区域的横截面积与包层区域的截面面积的比例从塌陷到或接近预定范围，而不管该比例的初始值如何 通过在塌陷期间从管状结构的外部蒸发更多或更少的玻璃而形成原始的管状结构。