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Optica Publishing Group
  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper CP1_7

High power thin disk laser operation of Yb:Lu2O3 with 80% slope efficiency

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Abstract

One of the most desirable properties of host crystals for high power solid state lasers is a high thermal conductivity. From this point of view the sesquioxides Sc2O3, Y2O3, and Lu2O3 appear to be suitable due to their high initial heat conductivity in undoped crystals. Because of the very similar ionic radii of Lu3+ and Yb3+, high doping concentrations can be realized and induce only small distortions of the lattice maintaining the high heat conductivity. Thus, highly Yb- doped lu2o3 has a high potential as solid-state laser material, especially for the microchip- and thin disk laser geometry.

© 2007 IEEE

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