J. Ihring

Narrow linewidth, single mode 3 kW average power from a directly diode pumped ytterbium-doped low NA fiber amplifier.

A. Tünnermann, R. Eberhardt, S. Kuhn, 2016, Optics express.

All-Solution Doping Technique for Tailoring Core Composition toward Yb:AlPO4:SiO2

Andreas Tünnermann, Ramona Eberhardt, Thomas Schreiber, 2015 .