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arXiv · 2101.08501

10.4 kW coherently combined ultrafast fiber laser

Michael Müller·Christopher Aleshire·Arno Klenke·Elissa Haddad·François Légaré·Andreas Tünnermann·Jens Limpert
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Abstract

An ultrafast laser delivering 10.4 kW average output power based on coherent combination of twelve stepindex fiber amplifiers is presented. The system emits close-to-transform-limited 254 fs pulses at 80 MHz repetition rate, has a high beam quality (M2<=1.2), and a low relative intensity noise of 0.56% in the frequency range of from 1 Hz to 1 MHz. Automated spatiotemporal alignment allows for hands-off operation.

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Michael Müller, Christopher Aleshire, Arno Klenke, Elissa Haddad, François Légaré, Andreas Tünnermann, Jens Limpert. 2021-01-21. 10.4 kW coherently combined ultrafast fiber laser. https://doi.org/10.1364/ol.392843

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