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5 March 2021 Long-term stable 120W fiber CPA with 1.3GW peak power at 2µm
Christian Gaida, Fabian Stutzki, Martin Gebhardt, Tobias Heuermann, Sven Breitkopf, Jan Rothhardt, Tino Eidam, Jens Limpert
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Proceedings Volume 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI; 116760N (2021) https://doi.org/10.1117/12.2577478
Event: SPIE LASE, 2021, Online Only
Abstract
We present the first high-power coherently combined thulium-doped fiber-CPA. The laser system delivers >228 µJ pulse energy with <120 fs pulse duration at a pulse repetition frequency of 500 kHz. Excellent long-term stability is achieved with an average power fluctuation of <0.5% RMS over >48 hours of operation even at an average-power >120 W. The simultaneous availability of 100 W class average power and 1 GW-class peak power in the 2 µm wavelength regime is not only unique in the world of science but also comes in a fully engineered and commercially available system design optimized for long-term operation..
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Christian Gaida, Fabian Stutzki, Martin Gebhardt, Tobias Heuermann, Sven Breitkopf, Jan Rothhardt, Tino Eidam, and Jens Limpert "Long-term stable 120W fiber CPA with 1.3GW peak power at 2µm", Proc. SPIE 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI, 116760N (5 March 2021); https://doi.org/10.1117/12.2577478
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KEYWORDS
Laser systems engineering
Pulsed laser operation
Energy efficiency
High power lasers
Laser stabilization
Fiber amplifiers
Fiber lasers
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