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    • 5. 发明授权
    • Method of making a jacketed preform for optical fibers using OVD
    • 使用OVD制造光纤夹套预制件的方法
    • US07089765B2
    • 2006-08-15
    • US10151846
    • 2002-05-20
    • Hartwig SchaperNorbert TreberOliver HumbachUwe HakenDonald Paul Jablonowski
    • Hartwig SchaperNorbert TreberOliver HumbachUwe HakenDonald Paul Jablonowski
    • C03B37/018
    • C03B37/01892C03B37/01205C03B37/01211C03B2201/12C03B2201/31C03B2203/22C03B2203/36
    • On the basis of a known process for the production of a preform for an optical fiber for optical data transmission technology, the productivity of the process for the production of complex refractive index profiles is to be improved by providing a quartz glass substrate tube which exhibits different doping in radial direction, introducing a core glass made of synthetic quartz glass into the substrate tube and covering the substrate tube with a jacket tube. A substrate tube suitable therefor is also being provided which tube requires less core glass material for the production of the preform, whether during the internal deposition or for the core glass rod in the rod-in-tube technique. Regarding the process it is proposed according to the invention that a substrate tube be used which was obtained by vitrification of a porous tube-shaped SiO2 blank, the substrate tube being provided with a core glass layer which is produced in that to the first radial portion of the SiO2 blank there is added before the vitrification a first dopant which increases the refractive index of quartz glass. The substrate tube according to the invention has in the radial direction regions of different doping whereby it incorporates a core glass layer which has a refractive index of at least 1.459.
    • 在制造用于光学数据传输技术的光纤预制件的已知方法的基础上,通过提供具有不同的折射率分布的石英玻璃基板管来提高制造复合折射率分布的方法的生产率 在径向上进行掺杂,将由合成石英玻璃制成的芯玻璃引入衬底管中并用套管覆盖衬底管。 还提供了一种适用于其的基底管,该管需要较少的核心玻璃材料用于生产预成型件,无论是在内部沉积期间还是在棒状管技术中用于芯玻璃棒。 关于该方法,根据本发明提出了使用通过多孔管状SiO 2空白玻璃化而获得的衬底管,衬底管设置有芯玻璃层,其为 在玻璃化之前加入到SiO 2的坯料的第一径向部分的第一掺杂剂增加了石英玻璃的折射率。 根据本发明的衬底管具有不同掺杂的径向区域,由此其包含折射率至少为1.459的芯玻璃层。