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New fluoroindate glass compositions

Published online by Cambridge University Press:  31 January 2011

Y. Messaddeq ,
A. Delben ,
M.A. Aegerter ,
A. Soufiane  and
M. Poulain
Y. Messaddeq
Affiliation:
Instituto de Física e Química de Sāo Carlos, University of Sāo Paulo, 13560, Sāao Carlos (SP), Brazil
A. Delben
Affiliation:
Instituto de Física e Química de Sāo Carlos, University of Sāo Paulo, 13560, Sāao Carlos (SP), Brazil
M.A. Aegerter
Affiliation:
Instituto de Física e Química de Sāo Carlos, University of Sāo Paulo, 13560, Sāao Carlos (SP), Brazil
A. Soufiane
Affiliation:
Centre d'Etude des Matériaux Avancés, Av. Général Leclerc, Université de Rennes, Beaulieu, 35042, Rennes Cédex, France
M. Poulain
Affiliation:
Centre d'Etude des Matériaux Avancés, Av. Général Leclerc, Université de Rennes, Beaulieu, 35042, Rennes Cédex, France
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Abstract

The limits of glass formation of new fluoroindate glass compositions have been determined for the basic systems InF3–BaF2–GdF3−20ZnF2−20SrF2–2XFn where × = Na, La and InF3–BaF2−20ZnF2−20SrF2−2GdF3–XFn, where × = Ca and Y. The incorporation of small amounts of GaF3 and/or GdF3 increases strongly the thermal glass stability. All the fluoroindate compositions studied are highly transparent in the mid-infrared range; their transmission edge is shifted beyond 7 μm and the theoretical attenuation coefficient, extrapolated at the CO laser wavelength emission, is typically α = 100 dB/km. Large bulks and preforms have been prepared allowing the drawing of optical fibers.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 4 , April 1993 , pp. 885 - 889
Copyright
Copyright © Materials Research Society 1993

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References

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