公开(公告)号：US20040037526A1

公开(公告)日：2004-02-26

申请号：US09933662

申请日：2001-08-22

申请人： ALCATEL

发明人： Jean-Florent Campion ,  Isabelle DeCaux ,  Philippe Dupont ,  Terry Voots ,  Jose G. Piffaretti ,  Roger Charlton

IPC分类号： G02B006/02 ,  G02B006/16

CPC分类号： C03C25/607 ,  C03C25/00 ,  C03C25/64

摘要： A method for reducing the hydrogen aging loss of silica optical fibers by irreversible reaction of the peroxide defects with deuterium is described. This method comprises the step of contacting the optical fiber with deuterium by exposure to a gas mixture containing deuterium at a temperature compatible with the fiber without exposing the fiber to any further activation, and subsequently the step of degassing the fiber in a neutral atmosphere. The invention relates further a process of producing optical fibers with low hydrogen aging loss wherein an optical fiber is treated using the method for reducing the hydrogen aging loss. Finally, the invention relates to optical fibers with low hydrogen aging loss obtainable by this process and telecommunication cables produced using these optical fibers. Using the new method, an activation step using intense light and/or elevated temperature is not necessary to achieve the reaction of peroxide defects in silica with deuterium. The process according to the invention allows reaction at temperatures such as the ambient temperature without any further activation.

摘要翻译： 描述了通过过氧化物缺陷与氘的不可逆反应降低二氧化硅光纤的氢老化损失的方法。 该方法包括通过在与纤维相容的温度下暴露于含有氘的气体混合物而使光纤与氘接触的步骤，而不使纤维暴露于任何进一步的活化，随后在中性气氛中使纤维脱气的步骤。 本发明进一步涉及一种生产低氢老化损耗的光纤的方法，其中使用降低氢老化损失的方法处理光纤。 最后，本发明涉及通过该方法获得的具有低氢老化损耗的光纤和使用这些光纤产生的通信电缆。 使用新方法，使用强光和/或升高温度的活化步骤不需要实现二氧化硅中的过氧化物缺陷与氘的反应。 根据本发明的方法允许在诸如环境温度的温度下进行反应而没有任何进一步的活化。