发明名称 METHOD OF PROTECTING A HOLLOW PREFORM FOR OPTICAL FIBRES
摘要 <p>Disclosed is a method of minimizing re-wetting of a preform upon removal of the preform from the consolidation furnace and producing core cane and/or optical fiber therefrom. During removal, the consolidated preform and, in particular, the centerline aperture is exposed to a heavy inert gas, such as Argon, Krypton or Xenon. This reduces the amount of re-wetting thereby concomitantly improving attenuation of the optical fiber produced therefrom. This method produces beneficial attenuation reductions in the 1383 nm wavelength region.</p>
申请公布号 WO2001030712(A1) 申请公布日期 2001.05.03
申请号 US2000026791 申请日期 2000.09.28
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