Characterizations of 400 µm and 1 mm diameter Yb:YAG single-crystal fibers grown by the micro-pulling-down method for laser application - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Crystal Growth Année : 2009

Characterizations of 400 µm and 1 mm diameter Yb:YAG single-crystal fibers grown by the micro-pulling-down method for laser application

Résumé

70 cm long Yb3+-doped Y3Al5O12 (Yb:YAG) single-crystal fibers of 1 and 0.4 mm diameters were grown by the micro-pulling-down method. The structural and optical characterizations of those fibers showed that they exhibited a perfect single crystalline structure and have a homogeneous distribution of the Yb3+ ion in the YAG host. In diode-pumped laser operation, a continuous wave output power of 50 W at 1030 nm was demonstrated for 180 W of pump power at 940 nm, for 1 mm diameter fibers. For 0.4 mm diameter fibers, 28 W at 1030 nm for 100 W of incident pump at 940 nm power was achieved. To the best of our knowledge, these results are the highest laser power ever obtained with directly grown single-crystal fibers.

Dates et versions

hal-00533571 , version 1 (07-11-2010)

Identifiants

Citer

Nicolas Aubry, Damien Sangla, C. Mancini, Julien Didierjean, Didier Perrodin, et al.. Characterizations of 400 µm and 1 mm diameter Yb:YAG single-crystal fibers grown by the micro-pulling-down method for laser application. Journal of Crystal Growth, 2009, 311 (23-24), pp 4805-4811. ⟨10.1016/j.jcrysgro.2009.09.036⟩. ⟨hal-00533571⟩
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