Abstract
High power continuous wave operation of a diode face-pumped thin Nd:YAG slab laser is reported. A novel pumping geometry for a thin Nd:YAG slab using cylindrical lens duct coupled diode laser stacks is demonstrated. In a close-coupled resonator, a maximum laser output power of 260 W in multimode operation is obtained. This corresponds to a slope efficiency of 34% and an optical-to-optical efficiency of 27%, respectively. In high-brightness operation, a polarized laser output of 70 W has been obtained with a beam quality factor close to 4 in both directions. The polarization contrast ratio is >100.
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42.55.Xi; 42.60.Pk; 42.60.By
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Ranganathan, K., Misra, P. & Nath, A. Thin Nd:YAG slab laser pumped by lens duct coupled diode laser stacks. Appl. Phys. B 86, 215–217 (2007). https://doi.org/10.1007/s00340-006-2538-x
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DOI: https://doi.org/10.1007/s00340-006-2538-x