3.5kW coherently combined ultrafast fiber laser

Michael Mueller; Arno Klenke; Albrecht Steinkopff; Evgeny Shestaev; Andreas Tünnermann; Jens Limpert

doi:10.1117/12.2509693

7 March 2019 3.5kW coherently combined ultrafast fiber laser

Michael Mueller, Arno Klenke, Albrecht Steinkopff, Evgeny Shestaev, Andreas Tünnermann, Jens Limpert

Proceedings Volume 10897, Fiber Lasers XVI: Technology and Systems; 1089719 (2019) https://doi.org/10.1117/12.2509693
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We present a coherently-combined ultrafast fiber laser system consisting of four amplifier channels delivering 3.5 kW average power at 80 MHz repetition rate with a pulse duration of 430 fs FWHM and a close-to-diffraction-limited beam quality with an M² < 1.2. The system incorporates a fully automated self-adjustment of the beam combination, allowing for a quasi-turn-key operation of the system. At the date of publication, this system delivers the highest average power reported from an ultrafast laser.

Citation Download Citation

Michael Mueller, Arno Klenke, Albrecht Steinkopff, Evgeny Shestaev, Andreas Tünnermann, and Jens Limpert "3.5kW coherently combined ultrafast fiber laser", Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 1089719 (7 March 2019); https://doi.org/10.1117/12.2509693

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