Martin Traub

TL;DR: In this paper, a waveguide segments the far field distribution by several total internal reflections, and these segments are overlaid at the waveguide's exit surface by a microoptic device.

TL;DR: Based on a detailed analysis of losses, an improved e-o-efficiency in the range of 40% to 45% is expected in the near future and system performance and reliability were demonstrated with sheet metal cutting tests on stainless steel.

TL;DR: In this article, a new generation of vertical emitting diode laser (VCSELs) made significant progress and provided easy scalable output power in the kW range, which can be used for direct materials processing substituting other laser types like CO2 lasers and lamp pumped solid state lasers.

TL;DR: The simulation of spectral stabilization of broad-area edge-emitting semiconductor diode lasers is presented and the focus of the model lies on the prediction of influences on the spectrum and power characteristics by frequency selective feedback from external optical resonators.

TL;DR: In this article, a monolithically integrated master oscillator power amplifier at 1.5 μm is presented, which includes a distributed feedback laser, a modulation section, and a high power tapered amplifier.