107 citations · 182 across the 5 of their papers we have counts for
5 papers
500 W rod-type 4x4 multi-core ultrafast fiber laser
A. Klenke, A. Steinkopff, C. Aleshire +10
We present a coherently-combined femtosecond fiber CPA system based on a rod-type, Ytterbium-doped, multicore fiber with 4x4 cores. A high average power of up to 500 W (after combi…
Impact of thermo-optical effects in coherently-combined multicore fiber amplifiers
Albrecht Steinkopff, Cesar Jauregui, Christopher Aleshire +2
In this work we analyze the power scaling potential of amplifying multicore fibers (MCFs) used in coherently-combined systems. In particular, in this study we exemplarily consider…
Investigation of spatiotemporal output beam profile instabilities from differentially pumped capillaries
Martin Gebhardt, Emmanuel B. Amuah, Robert Klas +4
Differentially pumped capillaries, i.e., capillaries operated in a pressure gradient environment, are widely used for nonlinear pulse compression. In this work, we show that strong…
Simplified Design of Optical Elements for Filled-Aperture Coherent Beam Combination
Christopher Aleshire, Albrecht Steinkopff, Cesar Jauregui +3
A simplification strategy for Segmented Mirror Splitters (SMS) used as beam combiners is presented. These devices are useful for compact beam division and combination of linear and…
3.5 kW coherently combined ultrafast fiber laser
Michael Müller, Arno Klenke, Albrecht Steinkopff +3
An ultrafast laser based on coherent beam combination of four ytterbium-doped step-index fiber amplifiers is presented. The system delivers an average power of 3.5 kW and a pulse d…