• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical study on the dopant concentration and refractive index profile evolution in an optical fiber manufacturing process
【24h】

Numerical study on the dopant concentration and refractive index profile evolution in an optical fiber manufacturing process

机译：光纤制造过程中掺杂剂浓度和折射率分布演变的数值研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The index of refraction is an important property of optical fibers, since it directly affects the bandwidth and optical loss during information transmission. The refractive index is governed by the dopant concentration distribution across the fiber cross section, which is strongly influenced by the processing conditions. An understanding of the effects of process parameters on the dopant concentration profile evolution is important to design the drawing process for tailored refractive index and optical transmission characteristics. Although the heat and momentum transport in optical fiber drawing have been studied extensively, little has been reported in the open literature on dopant concentration and index of refraction profile development during processing. This paper presents a two-dimensional numerical analysis on the flow, heat and mass transfer phenomena involved in the drawing and cooling process of glass optical fibers using a finite difference approach based on primitive variables. The effects of several important parameters are investigated in terms of nondimensional groups, including: fiber draw speed, inert gas velocity, furnace dimensions, gas properties, and dopant properties on the flow, temperature and dopant concentration distribution.
机译：折射率是光纤的重要属性，因为它直接影响信息传输过程中的带宽和光损耗。折射率受整个纤维横截面上的掺杂剂浓度分布的控制，这受加工条件的影响很大。对工艺参数对掺杂剂浓度分布演变的影响的理解对于设计用于定制折射率和光学透射特性的拉伸工艺非常重要。尽管已经对光纤拉制中的热和动量传输进行了广泛的研究，但是在公开的文献中，关于掺杂剂浓度和加工过程中折射率分布的发展的报道很少。本文使用基于原始变量的有限差分方法，对玻璃纤维的拉伸和冷却过程中涉及的流动，传热和传质现象进行了二维数值分析。从无量纲的角度研究了几个重要参数的影响，包括：纤维拉伸速度，惰性气体速度，炉子尺寸，气体性质以及掺杂剂性质对流量，温度和掺杂剂浓度分布的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号