Dopant interactions in high power laser fibers

被引：36

作者：

Kirchhof, J ^{[1
]}

Unger, S ^{[1
]}

Schwuchow, A ^{[1
]}

Jetschke, S ^{[1
]}

Knappe, B ^{[1
]}

机构：

[1] Inst Phys Hochtechnol eV, D-07745 Jena, Germany

来源：

Optical Components and Materials II | 2005年 / 5723卷

关键词：

fiber laser; fiber amplifier; fiber fabrication; rare earth doping; co-doping; fluorescence; absorption cross section; optical loss;

D O I：

10.1117/12.590021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rare earth doped silica based fiber lasers and amplifiers with very high output power and excellent beam quality are efficient devices for a variety of applications in industry, science and medicine. During the last years, important progress was possible by new design concepts but also by carefully tailoring the material properties. Aspects of material and technology development concerning the interaction of different dopants and co-dopants will be discussed in the following Our discussion concentrates on the optical properties of the laser fiber as refractive index, absorption and emission of the rare earths and especially on phenomena concerning the back-round loss of the fibers. We have found a strong rare earth specific loss component which remarkably depends on the kind and the ratio of the co-dopants. The relations of this background loss to material composition and fabrication technology are demonstrated and discussed on an empirical base.

引用

页码：261 / 272

页数：12

共 17 条

[1] THE ABSORPTION AND FLUORESCENCE-SPECTRA OF RARE-EARTH IONS IN SILICA-BASED MONOMODE FIBER [J].