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Q: Fachverband Quantenoptik und Photonik
Q 7: Poster I
Q 7.1: Poster
Montag, 6. März 2023, 16:30–19:00, Empore Lichthof
Power scaling of an Yb-doped diode-pumped mode-locked laser — •Thomas Konrad1, Andy Steinmann1, Tobias Steinle1, Monika Ubl1, Matthias Seibold2, Gabriele Untereiner3, Mario Hentschel1, Philipp Flad1, and Harald Giessen1 — 14th Physics Institute, Research Center SCoPE, and IQST, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany — 2IHFG, Universität Stuttgart, Allmandring 3, 70569 Stuttgart, Germany — 31st Physics Institute, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
Today's high power solid-state lasers are often constructed as thin-disk lasers. They require complex and expensive pumping systems. An easier and cheaper way is using solid-state lasers with conventional bulk crystals. They cannot reach the power levels of thin-disk lasers, but can still provide sufficient peak power for many applications such as nonlinear frequency conversion, yet being cheaper than disk lasers. In this work we follow different approaches to increase the average power of a femtosecond mode-locked Yb:KGW laser with a dual crystal cavity design. One important aspect is improving the crystal cooling to overcome thermal limitations. This can be realized by soldering the crystal to the heat sink to improve the thermal contact. Other aspects include optimizing crystal dimensions, doping concentrations, as well as pump and mode sizes.