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Bonn 2000 – wissenschaftliches Programm

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Q: Quantenoptik

Q 40: Poster: Festkörperlaser

Q 40.8: Poster

Donnerstag, 6. April 2000, 16:30–19:30, Aula

Spectroscopic and laser properties of Yb3+-doped fluoride phosphate glasses — •Thomas Töpfer1, Jens Philipps1, Joachim Hein1, Maximilian Darscht1, Doris Ehrt2, and Roland Sauerbrey11Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, D-07743 Jena, Germany — 2Otto-Schott-Institut für Glaschemie, Friedrich-Schiller-Universität Jena, Frauenhoferstr. 6, D-07743 Jena, Germany

Fluoride phosphate glasses exhibit a wide transmission range, low linear and nonlinear refractive index, low hydroxyl-content, tailorable spectroscopic properties by varying phosphate content, and high damage threshold as desirable for laser host materials. Possible doping levels with rare earth ions exceeding 1021cm−3 make these glasses attractive for laser diode pumping. Absorption and emission cross section calculations, fluorescence lifetime measurements, determination of small signal gain and saturation intensity and laser experiments are discussed for a variety of fluoride phosphate glasses in dependence on composition and structure.

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