Investigation of new technique for using MCVD equipment to  preparing 62  5μm fiber preforms with large core and large NA

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Investigation of new technique for using MCVD equipment to preparing 62 5μm fiber preforms with large core and large NA

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- Investigation of new technique for using MCVD equipment to preparing 62 5μm fiber preforms with large core and large NA
- Issue 1, (1999)
- 作者机构：
  
  1. 1:华中理工大学物理系
  2. 2:北京玻璃研究所
  3. 3:马来西亚技术大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1999
- 稿件说明：
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Investigation of new technique for using MCVD equipment to preparing 62 5μm fiber preforms with large core and large NA[J]. 1999, (1).
DOI：

Investigation of new technique for using MCVD equipment to preparing 62 5μm fiber preforms with large core and large NA[J]. 1999, (1). DOI：

摘要

总结了使用ＭＣＶＤ设备制备大芯径、大数值孔径光纤预制棒的新工艺。探索在不掺硼的情况下，在预制棒芯层逐层增加ＧｅＣｌ４的流量。在内包层掺氟以降低内包层折射率。解决了为达到较高折射率差Δｎ，在芯层掺锗过多而引起光纤预制棒在沉积后期和缩棒过程中由材料的热膨胀系数而导致的炸裂问题。并通过改变火焰平移速度，提高了沉积速率，缩短了制棒时间。所拉制的光纤、数值孔径ＮＡ高达０．３０。

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Preparation and influence factors analysis on large numerical aperture multi-component flexible fiber

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