28 February 2014 High-brightness diode-pumped Er:YAG laser system at 2.94 µm with 400W peak power
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We report on a new monolithic high-power diode pumped Er:YAG solid state laser at 2.94 µm. The pulsed laser reaches 30Waverage output power and 150mJ pulse energy. To accomplish these high powers the thermal lensing of Er:YAG was modeled beyond ABCD matrix formalism with FEM simulations. With the well understood thermal lensing e ect alternative laser cavities have been designed for higher brightness. The predicted results t the theoretically simulated performance and with that an improved beam quality factor of M2 = 12 has been achieved with 100mJ pulse energy.
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Maximilian Harlander, Maximilian Harlander, Arne Heinrich, Arne Heinrich, Clemens Hagen, Clemens Hagen, Bernhard Nussbaumer, Bernhard Nussbaumer, "High-brightness diode-pumped Er:YAG laser system at 2.94 µm with 400W peak power", Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 895908 (28 February 2014); doi: 10.1117/12.2037746; https://doi.org/10.1117/12.2037746

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