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Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 2: 345 - 350

DOI: https://doi.org/10.3724/SP.J.1077.2006.00345

Research Paper

Hydrogen Loading and Photolytic Index Changes in Germanosilicate Fiber

  • LI Jian-Zhi ,
  • JIANG De-Sheng
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  • Structural HealthMonitoring and Control Institute Shijiazhuang Railway Institute, Shijiazhuang 050043, China

Received date: 2005-02-21

  Revised date: 2005-04-11

  Online published: 2006-03-20

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Abstract

In this paper, UV photosensitivity of a hydrogen-loaded germanosilicate fiber and the relation between photosensitivity and the hydrogen-loading condition were studied experimentally. Experimental results indicate that: ① the curve of refractive index changes in the hydrogen-loaded fibers is exponential type (Δn=3.3×10-4t0.31689), at a certain point, refractive index changes reach saturated. This power law accords with the model proposed by Patrick H. However, the refractive index changes of the hydrogen-loading fibers continue to increase when exposed time prolongs; ② the photosensitivity changes are exponential to hydrogen-loading time until they reach saturated; ③ the photosensitivity changes are proportional to the hydrogen-loading pressure.

Key words： photosensitivity; hydrogen loading; germanosilicate fiber; fiber bragg grating

Cite this article

LI Jian-Zhi , JIANG De-Sheng . Hydrogen Loading and Photolytic Index Changes in Germanosilicate Fiber[J]. Journal of Inorganic Materials, 2006 , 21(2) : 345 -350 . DOI: 10.3724/SP.J.1077.2006.00345

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