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2. 发明公开

EP1382904A1 Torch assembly and method for fabricating spliced optical fiber transmission lines 有权
标题翻译： Methode zur Herstellung von gespleissten optischen Fasern
公开(公告)号：EP1382904A1
公开(公告)日：2004-01-21
申请号：EP03004097.6
申请日：2003-02-25
申请人： FITEL USA CORPORATION
发明人： DiGiovanni, David, John , Veng, Torben, E.
IPC分类号： F23D14/40 , C03B23/043 , C03B23/045 , G02B6/255 , C03B37/14 , C03B37/15
CPC分类号： G02B6/2551 , C03B23/043 , C03B37/15 , F23D14/40
摘要： Touch assembly and method are described for fabricating a spliced low-loss, high-strength optical transmission line. A first fiber is spliced to a second fiber at a splice point. The spliced fibers are loaded into a heat treatment station, where a gas torch flame is used to thermally treat a splice region including the splice point, with the thermal treatment reducing splice loss due to expansion and mismatch of modefields between the first and second fibers. While heating the splice region, a dry gas is purged around the torch flame during the heat treatment process to avoid water at the surface of the spliced fibers. A purging gas is fed to the torch flame to purge dust particles from the flame, and after the heat treatment has been completed, the torch flame is used to restore the glass surface of the spliced fibers. Additionally described are torch assemblies for fabricating low-loss, high-strength optical fiber transmission lines.
摘要翻译：描述了用于制造拼接的低损耗高强度光传输线的触摸组件和方法。第一光纤在接合点处被接合到第二光纤。接合的纤维被装载到热处理站中，其中使用气体焰炬火焰来热处理包括接合点的接合区域，热处理减少了由于第一和第二纤维之间的模场的膨胀和失配引起的接合损耗。在加热接合区域的同时，在热处理过程中，在割炬火焰周围吹扫干燥气体，以避免接合纤维表面的水分。吹扫气体被供给到火炬火焰以从火焰中吹扫灰尘颗粒，并且在热处理完成之后，使用炬火焰来恢复拼接纤维的玻璃表面。另外描述了用于制造低损耗，高强度光纤传输线的割炬组件。

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