公开(公告)号：US4264347A

公开(公告)日：1981-04-28

申请号：US94499

申请日：1979-11-15

申请人： Takeshi Shintani ,  Atsushi Utsumi ,  Tadaaki Sukawa ,  Ryuji Kobayashi

发明人： Takeshi Shintani ,  Atsushi Utsumi ,  Tadaaki Sukawa ,  Ryuji Kobayashi

IPC分类号： C03B37/075 ,  C03B8/00 ,  C03B20/00 ,  C03B37/012 ,  C03B37/027 ,  C03C15/00 ,  C03C23/00 ,  G02B6/00 ,  C03C25/02

CPC分类号： C03B37/01211 ,  C03B37/027 ,  C03C15/00 ,  C03C23/00 ,  C03B2201/10 ,  C03B2201/14 ,  Y02P40/57 ,  Y10S65/16

摘要： An improved method of preparing optical fiber preforms and optical fibers by so called rod-in-tube method, wherein before collapsing a tube to heat-adhere to a rod, a specific glass surface treating agent and oxygen gas are flowed through the clearance between the rod and the tube maintained at a high temperature, whereby an optical fiber preform free from imperfections at the interface between the rod and the tube can be produced so as to give optical fibers of low-loss. As the above glass surface treating agent, those materials are employed which satisfy the following criteria: (i) the hydrogen content thereof being not more than about 1% by weight, and (ii) the substances, produced therefrom in the presence of oxygen gas at a high temperature, having a boiling point or sublimation point of not more than the temperature required for collapsing the tube.

摘要翻译： 一种通过所谓的棒内管法制备光纤预制棒和光纤的改进方法，其中在将管塌缩以热粘附到杆之前，特定的玻璃表面处理剂和氧气流过第 杆和管保持在高温下，从而可以制造在棒和管之间的界面处没有缺陷的光纤预制件，以便产生低损耗的光纤。 作为上述玻璃表面处理剂，使用满足以下标准的材料：（i）其氢含量不超过约1重量％，和（ii）在氧气存在下由其制备的物质 在高温下，沸点或升华点不大于使管塌缩所需的温度。