公开(公告)号：US5827346A

公开(公告)日：1998-10-27

申请号：US594193

申请日：1996-01-31

申请人： Nonna Kopylov ,  Ahmet R. Kortan

发明人： Nonna Kopylov ,  Ahmet R. Kortan

IPC分类号： G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/017

CPC分类号： C03B37/01268 ,  C03B2201/82 ,  C03B2203/22 ,  C03B2203/24 ,  Y10S65/04

摘要： A method of making core holes in cast cladding glass for fabricating optical fiber preforms to make single and multimode optical fibers. Liquid cladding glass is pored into a casting mold having a metallic wire that is translated through the liquid glass as it cools so that the wire essentially carves out a smooth cylindrical core hole along the cylindrical axis of the cooled cladding glass. The method substantially reduces surface contamination at the interface of the core hole and the cladding glass because any liquid glass that comes in contacts with the metallic wire is removed during the process, leaving behind a pristine glass surface.

摘要翻译： 一种在流延包层玻璃中制造芯孔的方法，用于制造光纤预制棒以制造单模和多模光纤。 液体包覆玻璃被放入具有金属线的铸模中，金属线在冷却时通过液体玻璃平移，使得丝线沿着冷却的包覆玻璃的圆柱轴线基本上雕刻出光滑的圆柱形核心孔。 该方法基本上减少了芯孔和包层玻璃的界面处的表面污染，因为在该过程中除去与金属线接触的任何液体玻璃，留下了原始的玻璃表面。