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Although known for more than two decades the Kerr-lens mode-locking (KLM) technique has only been translated successfully from low- to high average- and peak-power oscillators a few years ago. The high average output power of 45 W from a first KLM thin-disk oscillator based on Yb:YAG was made possible by separating the gain- from the Kerr-medium (KM) [1]. A simple geometrical approach to peak-power scaling in such KLM oscillators has recently resulted in the generation of 270 W, 38 MW pulses in ambient air [2]. Here we describe the simple road and steps to take the output peak-power of this oscillator towards several hundred MW.
© 2015 IEEE
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