Optical and thermal properties of rare earth containing low phonon energy glasses

被引：5
|
作者：
Scheffler, M [1 ]
Kirchhof, J [1 ]
Kobelke, J [1 ]
Schuster, K [1 ]
Schwuchow, A [1 ]
机构：
[1] Inst Phys Hochtechnol EV Jena, Dept Modern Opt, D-07743 Jena, Germany
来源：
INFRARED GLASS OPTICAL FIBERS AND THEIR APPLICATIONS | 1998年 / 3416卷
关键词：
low phonon energy glasses; fiber lasers; fiber amplifiers; chalcogenide glasses; heavy metal oxide glasses;
D O I：
10.1117/12.323376
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Doping of arsenic sulfide with small amounts of germanium and gallium can be used to improve the rare-earth ion solubility, whereby optical and thermal properties are modified. Here the influence of germanium and gallium on refractive index, fluorescence and glass transition temperature is systematically studied and discussed. It is shown that material properties suitable for variable lightguide structures can be tailored. In addition, we present our studies of properties of lead germanate glasses. Variations of the matrix composition were made and the effects in glass transition temperature, crystallization behaviour, refractive index, solubility of rare earths and UV-VIS-IR transmission were studied. Reducing the lead content and partial substitution of oxides by fluorides causes a shift of the optical bandgap of bulk material. First fluorescence investigations on Tm3+ and Yb3+ doped lead germanate glasses show blue, red and infrared emission under 980 nm excitation.
引用
收藏
页码：89 / 98
页数：10
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