UV laser induced transmission change of pure and doped silica glass

Article

DOI: 10.1007/s11595-007-6879-z

Cite this article as:
Xie, J., Deng, T., Luo, J. et al. J. Wuhan Univ. Technol.-Mat. Sci. Edit. (2008) 23: 879. doi:10.1007/s11595-007-6879-z
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Abstract

Pure and F, GeO2-doped silica glass cut from fiber preforms prepared by plasma assisted chemical vapor deposition(PCVD) were investigated by ultraviolet absorption spectroscopy. The ultraviolet absorption characteristics of these glasses were also studied after UV laser irradiation and heating treatment. It was found that absorption band near 240 nm assigned to GODC was found both in GeO2-doped and F-GeO2 co-doped silica glass, but absorption intensity of the latter was lower than that of the former. It’s because F can react with GODC and GeE’ simultaneously and reduce their concentration. After irradiation, UV absorption change of F-GeO2 co-doped silica glass was weaker than that of GeO2-doped silica glass,it thus can be concluded that introduction of F could depress the UV absorption of GeO2-doped silica core effectively.

Key words

irradiationcolor centerabsorption spectrum

Copyright information

© Wuhan University of Technology and Springer-Verlag GmbH 2008

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringWuhan University of TechnologyWuhanChina
  2. 2.Yangtze Optical Fibre and Cable Company Ltd.WuhanChina