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应用科学学报 ›› 1985, Vol. 3 ›› Issue (2): 128-132.

• 论文 • 上一篇    下一篇

测光纤预制棒折率射分布的光束偏折法的改进

廖延彪, 田芊, 吴庚生   

  1. 清华大学
  • 收稿日期:1982-03-29 修回日期:1983-06-18 出版日期:1985-06-30 发布日期:1985-06-30

THE MODIFICATION OF BEAM DEFLECTIVE METHOD FOR MEASURING REFRACTIVE INDEX PROFILE OF A FIBER PREFORM

LIAO YKNBIAO, TIAN QIAN, WU GENGSHENG   

  1. Qinghua University
  • Received:1982-03-29 Revised:1983-06-18 Online:1985-06-30 Published:1985-06-30

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摘要： 本文报道了一种改进的光束偏折法(非破坏性测量光纤预制棒折射率分布的方法).从准确匹配浸油改为近似匹配浸油,同时减小了入射光束的直径.实验表明此法结果可靠,节省时间,分辨率亦有所提高.

Abstract: In this paper, a modificatory beam deflective method, a method for nondestructive measurement of refractive index profile of a fiber preform, is described. Near matching fluid instead of accurate matching fluid is used in this method, the diameter of incident beam used being reduced at the same time. The experiments show that the measurement results are reliable. The measuring time can be saved and the accuracy promoted.