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Root-Cause Analysis of Peak Power Saturation in Pulse-Pumped 1100 nm Broad Area Single Emitter Diode Lasers
/forschung/publikationen/root-cause-analysis-of-peak-power-saturation-in-pulse-pumped-1100nbspnm-broad-area-single-emitter-diode-lasers
Many physical effects can potentially limit the peak achievable output power of single emitter broad area diode lasers under high current, pulse-pumped operation conditions. Although previous studies…
Study of the properties of the SHG with diode lasers
/forschung/publikationen/study-of-the-properties-of-the-shg-with-diode-lasers
An experimental study of the second-harmonic generation (SHG) properties with nondiffraction-limited radiation is presented. This includes the dependency of the normalized conversion efficiency on…
Electric probe investigations of microwave generated, atmospheric pressure, plasma jets
/forschung/publikationen/electric-probe-investigations-of-microwave-generated-atmospheric-pressure-plasma-jets
We examine the applicability of the Langmuir-type of characterization for atmospheric pressure plasma jets generated in a millimeter-size cavity microwave resonator at 2.45 GHz. Wide range I-V…
Effects of low charge carrier wave function overlap on internal quantum efficiency in GaInN quantum wells
/forschung/publikationen/effects-of-low-charge-carrier-wave-function-overlap-on-internal-quantum-efficiency-in-gainn-quantum-wells
To determine relevant processes affecting the internal quantum efficiency in GaInN quantum well structures, we have studied the temperature and excitation power dependent photoluminescence intensity…
Time resolved studies of catastrophic optical mirror damage in red-emitting laser diodes
/forschung/publikationen/time-resolved-studies-of-catastrophic-optical-mirror-damage-in-red-emitting-laser-diodes
We have observed the changing light intensity during catastrophic optical mirror damage (COMD) on the timescale of tens of nanoseconds using red-emitting AlGaInP quantum well based laser diodes.…
Shifted Excitation Resonance Raman Difference Spectroscopy using a Microsystem Light Source at 488 nm
/forschung/publikationen/shifted-excitation-resonance-raman-difference-spectroscopy-using-a-microsystem-light-source-at-488-nm
Experimental results in shifted excitation resonance Raman difference spectroscopy (SERRDS) at 488 nm will be presented. A novel compact diode laser system was used as excitation light source. The…
Investigations for real-time Raman measurements in the deep-ocean by applying a 1.5 W BA DFB diode laser and long optical fibers
/forschung/publikationen/investigations-for-real-time-raman-measurements-in-the-deep-ocean-by-applying-a-15-w-ba-dfb-diode-laser-and-long-optical-fibers
Raman spectroscopy is a powerful tool to obtain "fingerprint" spectra from substances in numerous applications. In-situ and/or real time measurements are interesting for the detection of…
High-Power Pulse Generation in GHz Range With 1064-nm DBR Tapered Laser
/forschung/publikationen/high-power-pulse-generation-in-ghz-range-with-1064-nm-dbr-tapered-laser
For high-power pulse generation at 1060-nm, distributed Bragg reflector tapered lasers were investigated. The lasers consist of a tapered section, a ridge waveguide (RW) absorber section and a…
200 mW at 488 nm From a ppMgO:LN Ridge Waveguide by Frequency Doubling of a Laser Diode Module
/forschung/publikationen/200-mw-at-488-nm-from-a-ppmgoln-ridge-waveguide-by-frequency-doubling-of-a-laser-diode-module
We report on second-harmonic generation in a single-pass bench top configuration using a MgO-doped periodically poled LiNbO3 ridge waveguide (RW) and a hybrid integrated master oscillator power…
High Power 1060 nm Ridge Waveguide Lasers with Low-Index Quantum Barriers for Narrow Divergence Angle
/forschung/publikationen/high-power-1060-nm-ridge-waveguide-lasers-with-low-index-quantum-barriers-for-narrow-divergence-angle
Combining low-index quantum-barriers with thick (8.6 µm) waveguide in a multi-QW 1060-nm epi-structure enabled a vertical divergence of <9°. 30 W broad-area and 0.8 W…