Abstract
In this paper a modified chalcogenide glass was studied by X-ray powder
diffraction, differential thermal analysis, infrared and Raman
scattering spectroscopies. The study of this new matrix opens new
perspectives to fabricate Pr3+-doped fibers to operate as an optical
amplifier in the 1.3 mum telecommunications window. The Pr3+-doped
70Ga(2)S(3)-30La(2)S(3) glass was modified through the substitution of
La2S3 by La2O3, which improves the thermal stability of these glasses
without any modification of phonon energy. The possibility to pull a
fiber from this glass system without any devitrification is easily
achieved.
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