Uwe Griebner

TL;DR: In this article, a comprehensive spectroscopic and laser characterization of monoclinic Yb,Tm:KLu(WO4)2 crystals is presented, where the 3F4→3H6 transition of Tm3+ ions is determined.

TL;DR: The first erbium (Er3+) doped double tungstate waveguide laser, fabricated by 3D femtosecond direct laser writing, characterized by confocal laser microscopy, µ-Raman and µ-luminescence mapping, confirming that the crystallinity of the core is preserved.

TL;DR: In this paper, the authors demonstrate the potential of a high-gain Yb-fiber amplifier system to provide ultrashort pulses with high energies, achieving average powers of up to 22 W and single pulse energies up to 130 μJ.

TL;DR: In this paper , mixed calcium rare-earth aluminate laser host crystals Ca(Gd,Lu)AlO4 (CALGLO) with up to 10.8 at.% Lu codoped with Tm3+ and Ho3+ ions are grown by Czochralski method along the [001] direction.

TL;DR: In this paper, a continuous-wave (cw) and passive mode-locked laser operation of diode-pumped semiconductor disk lasers based on gain sections with step and graded index designs, each containing 6 InGaAs quantum wells, is reported.