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27 February 2009 Thin disk laser: power scaling to the kW regime in fundamental mode operation
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A significant reduction of the influence of the thermal lens in thin-disk lasers in high power laser operation mode could be achieved, using dynamically stable resonators. For designing the resonator, investigations of thermally induced phase distortions of thin-disks as well as numerical simulations of the field distribution in the resonator were performed. This characterization was combined with thermo-mechanical computations. On the basis of these studies, about 500 W output power with an averaged M2 = 1.55 could be demonstrated, using one disk. Almost 1 kW output power with good beam quality could be extracted, using two disks. For the purpose of further power scaling in nearly fundamental mode operation, experiments using more than two disks are in preparation.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Mende, E. Schmid, J. Speiser, G. Spindler, and A. Giesen "Thin disk laser: power scaling to the kW regime in fundamental mode operation", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71931V (27 February 2009);


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