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公开(公告)号:EP0177206B1
公开(公告)日:1989-03-01
申请号:EP85306478.0
申请日:1985-09-12
Applicant: STC PLC
Inventor: Newbould, Richard Thomas , Piggs, Susan Jane , Wilson, Stephen John
IPC: C03C25/02 , C03B37/018 , G02B6/44
CPC classification number: C03C25/22 , C03B37/029 , C03B2201/24 , C03B2201/58 , Y10S65/90
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公开(公告)号:EP0177206A1
公开(公告)日:1986-04-09
申请号:EP85306478.0
申请日:1985-09-12
Applicant: STC PLC
Inventor: Newbould, Richard Thomas , Piggs, Susan Jane , Wilson, Stephen John
IPC: C03C25/02 , C03B37/018 , G02B6/44
CPC classification number: C03C25/22 , C03B37/029 , C03B2201/24 , C03B2201/58 , Y10S65/90
Abstract: In order to eliminate the effect of water attack on silica optical fibres, the fibres are provided with a surface layer of silicon nitride or silicon oxynitride. The method proposed comprises direct nitridation. This may be achieved by adding a nitriding atmosphere to the drawing furnace gases (Fig. 1), or to the reactive gases (TiCl 4 and SiCl 4 ) incorporated in the flame of an oxyhydrogen torch (Fig. 2) for the formation of a compressive silica/titania layer on an optical fibre by a glass soot deposition and sintering process.
Abstract translation: 为了消除水侵蚀二氧化硅光纤的效果,纤维设置有氮化硅或氮氧化硅的表面层。 所提出的方法包括直接氮化。 这可以通过将氮化气氛添加到拉丝炉气体(图1)中或添加到氢氧焰(图2)的火焰中的反应气体(TiCl4和SiCl4)以形成压缩二氧化硅 /二氧化钛层通过玻璃烟灰沉积和烧结工艺而形成在光纤上。
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