Efficiency optimization for a diode-pumped Nd:YAG ceramic slab laser

Year: 2005

Authors: Lapucci A., Ciofini M.

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

Abstract: With the help of photometric calculations based on ray-tracing algorithms, we have optimized the efficiency of the optical pumping of a Nd:YAG ceramic slab laser. The slab pumping is performed by means of two horizontal diode laser array stacks. The use of two small reflecting walls allows the sort of duct coupling that is capable of significantly improving the performance of the system. Our first experiments with a simple direct coupling provided a maximum extraction of slightly more than 160 W at a 20% slope efficiency level. The use of the optimized short duct coupling leads us to the extraction of 350 W with a slope efficiency of 51%, making use of the same diode arrays. The laser design is suitable for the construction of cw sources with power output above 1 kW.

Journal/Review: APPLIED OPTICS (2004)

Volume: 44 (20)      Pages from: 4388  to: 4393

KeyWords: Energy efficiency; Laser beam effects; Light reflection; Optical pumping; Optimization; Semiconductor diodes, Diode-pumped lasers; Face-pumped lasers; Reflecting walls; Slope efficiency, Solid state lasers
DOI: 10.1364/AO.44.004388

Citations: 25
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-07-14
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here