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Proceedings Article

Dopant interactions in high-power laser fibers

[+] Author Affiliations
Johannes Kirchhof, Sonja Unger, Anka Schwuchow, Sylvia Jetschke, Bruno Knappe

Institut fuer Physikalische Hochtechnologie e.V. (Germany)

Proc. SPIE 5723, Optical Components and Materials II, 261 (April 11, 2005); doi:10.1117/12.590021
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From Conference Volume 5723

  • Optical Components and Materials II
  • Shibin Jiang; Michel J. Digonnet
  • San Jose, California, United States | January 22, 2005

abstract

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 background 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.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Johannes Kirchhof ; Sonja Unger ; Anka Schwuchow ; Sylvia Jetschke and Bruno Knappe
"Dopant interactions in high-power laser fibers", Proc. SPIE 5723, Optical Components and Materials II, 261 (April 11, 2005); doi:10.1117/12.590021; http://dx.doi.org/10.1117/12.590021


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