330 citations · 641 across the 8 of their papers we have counts for
8 papers · 1 filter
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…
Gas-plasma based generation of broadband THz radiation with 640 mW average power
Joachim Buldt, Henning Stark, Michael Mueller +3
We present a high-power source of broadband terahertz radiation covering the whole THz spectral region (0.1-30 THz). The two-color gas plasma generation process is driven by a stat…
Transverse mode instability and thermal effects in thulium-doped fiber amplifiers under high thermal loads
Christian Gaida, Martin Gebhardt, Tobias Heuermann +3
We experimentally analyze the average-power-scaling capabilities of ultrafast, thulium-doped fiber amplifiers. It has been theoretically predicted that thulium-doped fiber laser sy…
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…
Fiber laser-driven gas plasma-based generation of THz radiation with 50-mW average power
Joachim Buldt, Michael Müller, Henning Stark +2
We present on THz generation in the two-color gas plasma scheme driven by a high-power, ultrafast fiber laser system. The applied scheme is a promising approach for scaling the THz…
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…