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Proceedings Paper

Characterization of the defects in a ZBLAN glass
Author(s): Ruihua Li; Huirong Wang; Peizhen Deng; Fuxi Gan
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Paper Abstract

Theoretically light transmission losses as low as lO3dB/Km are possible in optical fibers made from heavy metal fluoride glasses. One reason for this has not yet been achieved is scattering due to defects in the glass. A study of defects in ZrF4BaF2LaF3A1F3NaF (ZBLAN) glass has been carried out by laser light scattering tomography Leitz optical microscopy scanning electron microscopy energy dispersive spectroscopy and wavelength dispersive spectroscopy. Defects as light scattering centers were exhibited and their appearance dimensions and distribution were observed throughout the samples. The commonly found crystallites in this glass were identified to be LaF3 in different shapes and sizes. The formation mechanism and contribution of the defects to extrinsic scattering loss are discussed. 1 .

Paper Details

Date Published: 1 October 1990
PDF: 9 pages
Proc. SPIE 1327, Properties and Characteristics of Optical Glass II, (1 October 1990); doi: 10.1117/12.22515
Show Author Affiliations
Ruihua Li, Shanghai Institute of Optics and Fine Mechanics (China)
Huirong Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Peizhen Deng, Shanghai Institute of Optics and Fine Mechanics (China)
Fuxi Gan, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 1327:
Properties and Characteristics of Optical Glass II
Alexander J. Marker, Editor(s)

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