121 citations · 954 across the 14 of their papers we have counts for
14 papers
The scaling potential of beam-splitter-based coherent beam combination
Michael Mueller, Christopher Aleshire, Joachim Buldt +4
The impact of nonlinear refraction and residual absorption on the achievable peak and average power in beam-splitter-based coherent beam combination is analyzed theoretically. Whil…
Multipass cell for high-power few-cycle compression
Michael Mueller, Joachim Buldt, Henning Stark +2
A multipass cell for nonlinear compression to few-cycle pulse duration is introduced comprising dielectrically enhanced silver mirrors on silicon substrates. Spectral broadening wi…
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…
1 kW, 10 mJ, 120 fs coherently combined fiber CPA laser system
Henning Stark, Joachim Buldt, Michael Müller +2
An ultrafast fiber chirped-pulse amplification laser system based on coherent combination of 16 ytterbium-doped rod-type amplifiers is presented. It generates 10 mJ pulse energy at…
Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell
Christian Grebing, Michael Müller, Joachim Buldt +2
We demonstrate the reliable generation of 1-mJ, 31-fs pulses with an average power of 1 kW by post-compression of 200-fs pulses from a coherently combined Yb:fiber laser system in…
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…
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…
23 mJ high-power fiber CPA system using electro-optically controlled divided-pulse amplification
Henning Stark, Joachim Buldt, Michael Müller +3
The pulse-energy scaling technique electro-optically controlled divided-pulse amplification is implemented in a high-power ultrafast fiber laser system based on coherent beam combi…
Electro-optically controlled divided-pulse amplification
Henning Stark, Michael Müller, Marco Kienel +3
A novel technique for divided-pulse amplification is presented in a proof-of-principle experiment. A pulse burst, cut out of the pulse train of a mode-locked oscillator, is amplifi…
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…
Sequential phase locking scheme for a filled aperture intensity coherent combination of beam arrays
Arno Klenke, Michael Müller, Henning Stark +2
We present a novel phase locking scheme for the coherent combination of beam arrays in the filled aperture configuration. Employing a phase dithering mechanism for the different be…
Coherently combined 16 channel multicore fiber laser system
A. Klenke, M. Müller, H. Stark +5
We present a coherently combined laser amplifier with 16 channels from a multicore fiber in a proof-of-principle demonstration. Filled aperture beam splitting and combination toget…
Coherent Beam Combination of Ultrafast Fiber Lasers
Arno Klenke, Michael Müller, Henning Stark +4
The performance of fiber laser systems has drastically increased over recent decades, which has opened up new industrial and scientific applications for this technology. However, c…
Ultra-short-pulse high-average-power Megahertz-repetition-rate coherent extreme-ultraviolet light source
R. Klas, A. Kirsche, M. Gebhardt +5
High harmonic generation (HHG) enables coherent extreme-ultraviolet (XUV) radiation with ultra-short pulse duration in a table-top setup. This has already enabled a plethora of app…