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Impact of Buffer Composition on the Dynamic On-State Resistance of High-Voltage AlGaN/GaN HFETs
/forschung/publikationen/impact-of-buffer-composition-on-the-dynamic-on-state-resistance-of-high-voltage-algangan-hfets
Switching experiments with normally-off GaN-HFETs using a carbon-doped GaN buffer or an AlGaN buffer showed very different magnitudes of increased dynamic on-state resistance. The dynamic on-state…
Frequency-doubled diode laser for direct pumping of Ti:sapphire lasers
/forschung/publikationen/frequency-doubled-diode-laser-for-direct-pumping-of-tisapphire-lasers
A single-pass frequency doubled high-power tapered diode laser emitting nearly 1.3 W of green light suitable for direct pumping of Ti:sapphire lasers generating ultrashort pulses is…
10W-reliable 90µm-wide broad area lasers with internal grating stabilization
/forschung/publikationen/10w-reliable-90um-wide-broad-area-lasers-with-internal-grating-stabilization
Broad area (BA) diode lasers with narrow, temperature-stable spectral lines are required for pumping narrow spectral lines in solid state lasers and for dense spectral multiplexing in direct…
Progress in increasing the maximum achievable output power of broad area diode lasers
/forschung/publikationen/progress-in-increasing-the-maximum-achievable-output-power-of-broad-area-diode-lasers
High power broad area diode lasers provide the optical energy for all high performance laser systems, either directly or as pump sources for solid-state lasers. Continuous improvement is required in…
Compact sources for the generation of high-peak power wavelengthstabilized laser pulses in the picoseconds and nanoseconds ranges
/forschung/publikationen/compact-sources-for-the-generation-of-high-peak-power-wavelength-stabilized-laser-pulses-in-the-picoseconds-and-nanoseconds-ranges
Diode lasers are ideally suited for the generation of optical pulses in the nanoseconds and picoseconds ranges by gainswitching, Q-switching or mode-locking. We have developed diode-laser based light…
All semiconductor high power fs laser system with variable repetition rate
/forschung/publikationen/all-semiconductor-high-power-fs-laser-system-with-variable-repetition-rate
Laser diodes offer an interesting alternative to commercially available light sources for the generation of ultrashort pulses. They have the unique feature that they can be directly electrically…
Red-emitting diode lasers with internal surface DBR gratings
/forschung/publikationen/red-emitting-diode-lasers-with-internal-surface-dbr-gratings
Red-emitting diode lasers currently do not offer a small spectral linewidth, which is required in a variety of applications like spectroscopy, interferometry and holography. We will present details…
Thermo-optical simulation of high-power diode lasers
/forschung/publikationen/thermo-optical-simulation-of-high-power-diode-lasers
Numerical simulations are an important tool for the design of opto-electronical components and devices. In order to obtain realistic results, a multitude of physical effects and theories have to be…
All-semiconductor based, narrow linewidth, high power laser system for laser communication applications in space at 1060nm
/forschung/publikationen/all-semiconductor-based-narrow-linewidth-high-power-laser-system-for-laser-communication-applications-in-space-at-1060nm
We demonstrate environmental test results of a compact high-power master oscillator (MO) power amplifier (PA) laser module emitting near 1064 nm. The module is micro-integrated on a footprint of…
Continuously current-tunable, narrow line-width miniaturized external cavity diode laser at 633 nm
/forschung/publikationen/continuously-current-tunable-narrow-line-width-miniaturized-external-cavity-diode-laser-at-633nbspnm
Red emitting diode lasers with a narrow spectral line-width and continuous tuning are requested as light sources for interferometric measurements with nm-accuracy. Tuning ranges of about 25 GHz…