Compact high-Power ceramic slab laser

Year: 2005

Authors: Lapucci A., Ciofini M.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: Preliminary tests are here reported, carried out on a compact and rugged diode pumped solid state (DPSS) laser for industrial applications. The laser design is based on a Neodimium doped slab shaped ceramic YAG medium. A maximum extraction of more than 320 W at a 44% slope efficiency level has been obtained with a simple half symmetric stable resonator scheme. Experimental data together with F.E.M. simulations indicate that power extraction can be scaled up to a multi-kilo Watt level with this extremely compact (overall dimensions: 160 × 100 × 60 mm) laser head geometry. A narrow transverse direction Beam Parameter Product (BPP) of the order of 3 mm.mrad is experimentally obtained. This enables the reasonable prediction of a good quality beam extraction adopting a stable multipass resonator or a hybrid stable-unstable resonator [1]. Given the zig-zag resonator path, thermal lens effects appear scarcely critical.

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KeyWords: Ceramic materials; Doping (additives); Extraction; Industrial applications; Laser beams; Optical pumping; Optical resonators; Semiconductor lasers; Solid state lasers; Yttrium compounds, Ceramic lasers; Diode pumped solid state (DPSS) lasers; High power solid state lasers; Slab lasers, High power lasers
DOI: 10.1117/12.611036

Citations: 1
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