公开(公告)号：US20040107898A1

公开(公告)日：2004-06-10

申请号：US10725003

申请日：2003-12-02

申请人： ALCATEL

发明人： Andre Appriou ,  Charles Truchot ,  Sabine Guina

IPC分类号： C23C016/00 ,  B05D005/06 ,  H05H001/24

CPC分类号： C03B37/01291 ,  C03B37/01426

摘要： Apparatus (1) is dedicated to plasma buildup of an optical fiber preform (2). The apparatus comprises firstly a plasma torch (3) fed with plasma-generating gas by primary feed means (5) and arranged in such a manner as to enable a buildup material to be deposited on a primary preform (2) for building up in the presence of a silica-based material, and secondly secondary feed means (9) arranged to introduce at least one reducing element upstream from the primary preform (2), the reducing element reacting to induce reduction of the nitrogen oxides produced by the interaction between nitrogen and oxygen of the air contained in the enclosure in which buildup takes place in the presence of the plasma generated by the plasma torch (3).

摘要翻译： 装置（1）专用于光纤预制棒（2）的等离子体积聚。 该装置首先包括通过初级进料装置（5）供给等离子体产生气体的等离子体焰炬（3），并以这样一种方式布置，使得能够将沉积材料沉积在初级预制件（2）上，以便在 存在二氧化硅基材料，其次二次进料装置（9）被布置成在初级预型件（2）的上游引入至少一个还原元件，所述还原元件反应以引起由氮气之间的相互作用产生的氮氧化物的还原 以及在由等离子体焰炬（3）产生的等离子体存在的情况下，包含在壳体中的空气的氧气，其中发生积聚。