Université de Neuchâtel

Sub-100-fs Kerr lens mode-locked Yb:Lu2O3 thin-disk laser oscillator operating at 21 W average power

Modsching, Norbert ; Drs, Jakub ; Fischer, Julien ; Paradis, Clément ; Labaye, François ; Gaponenko, Maxim ; Kränkel, Christian ; Wittwer, Valentin J ; Südmeyer, Thomas

In: Optics Express, 2019, vol. 27, no. 11, p. 16111-16120

We investigate power-scaling of a Kerr lens mode-locked (KLM) Yb:Lu2O3 thin-disk laser (TDL) oscillator operating in the sub-100-fs pulse duration regime. Employing a scheme with higher round-trip gain by increasing the number of passes through the thin-disk gain element, we increase the average power by a factor of two and the optical-to-optical efficiency by a factor of...