1kW 1mJ 8-channel ultrafast fiber laser
Michael M\"uller, Marco Kienel, Arno Klenke, Thomas Gottschall, Evgeny, Shestaev, Marco Pl\"otner, Jens Limpert, Andreas T\"unnermann
TL;DR
This paper presents an 8-channel ultrafast fiber laser that coherently combines to produce 1 kW power with 1 mJ pulses at 260 fs duration, suitable for advanced scientific use.
Contribution
It introduces a high-power, ultrafast fiber laser with coherent beam combining, achieving unprecedented power and pulse energy levels.
Findings
Delivered 1 kW average power with 1 mJ pulses
Maintained excellent beam quality and low noise
Demonstrated potential for further power scaling
Abstract
An ultrafast fiber chirped-pulse amplifier comprising 8 coherently combined amplifier channels is presented. The laser delivers 1 kW average power at 1 mJ pulse energy and 260 fs pulse duration. Excellent beam quality and low noise performance are confirmed. The laser has proven suitable for demanding scientific applications. Further power scaling is possible right away using even more amplifier channels
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