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Updated: Jun 27, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Highly efficient optically pumped vertical-emitting semiconductor laser with more than 20 W average output power in a
1Department of Physics, Institute of Quantum Electronics, ETH Zürich, Zürich, Switzerland. rudin@phys.ethz.ch
Abstract:
We have demonstrated an optically pumped vertical-external-cavity surface-emitting laser (OP-VECSEL) generating more than 20 W of cw output power in a fundamental transverse mode (M2 approximately 1.1) at 960 nm. The laser is highly efficient with a slope efficiency of 49%, a pump threshold of 4.4 W, and an overall optical-to-optical efficiency of 43%.
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