High efficiency, diode pumped Nd:YAG ceramics slab laser with 230 W continuous-wave output power

Year: 2012

Authors: Lapucci A., Ciofini M., Vannoni M., Sordini A.

Autors Affiliation: CNR – National Research Council , Istituto Nazionale di Ottica, Largo Enrico Fermi 6, I-50125 Firenze, Italy

Abstract: Diode pumped zig-zag slab lasers are widely adopted for continuous-wave high power or pulsed high energy applications. Recently [J. Eur. Opt. Soc.-Rapid 6, 11041 (2011)] we started to investigate a new thin slab format in which pumping radiation input is obtained through the thin lateral faces (edge pumping) and the beam propagation takes place bouncing on these same lateral faces (\”edge zig-zag\”). We report on the optimized operation of a ceramic Nd:YAG laser, based on this geometry, extracting 230 W at a 43% output power to diode power conversion efficiency. Thorough investigation of the thermal lens effect allows us to analyze the optical cavity and thus to define the main aspects limiting the present laser configuration. (C) 2012 Optical Society of America

Journal/Review: APPLIED OPTICS

Volume: 51 (18)      Pages from: 4224  to: 4231

KeyWords: Ceramic materials; Continuous wave lasers; Diodes; High energy lasers; Lenses; Neodymium lasers; Optical pumping; Pulsed lasers; Slab mills, Continuous wave output power; Diode pumped Nd: YAG; Energy applications; Laser configuration; Optimized operations; Power conversion efficiencies; Thermal lens effects; Zig-zag slab lasers, Pumping (laser)
DOI: 10.1364/AO.51.004224

Citations: 13
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