Suche
Regeln für die Suche
- Nur Wörter mit 2 oder mehr Zeichen werden akzeptiert
- Maximal 200 Zeichen insgesamt
- Leerzeichen werden zur Trennung von Worten verwendet, "" kann für die Suche nach ganzen Zeichenfolgen benutzt werden (keine Indexsuche)
- UND, ODER und NICHT sind Suchoperatoren, die den standardmäßigen Operator überschreiben. +/|/- entspricht UND, ODER und NICHT als Operatoren
- Alle Suchwörter werden zu Kleinschreibung konvertiert
High Output Power Ultra-Wideband Distributed Amplifier in InP DHBT Technology Using Diamond Heat Spreader
/forschung/publikationen/high-output-power-ultra-wideband-distributed-amplifier-in-inp-dhbt-technology-using-diamond-heat-spreader
This work reports on a highly linear and high output power ultra-wideband distributed amplifier with improved thermal properties using a diamond layer for heat spreading. The performances of a…
Broadband Driver Amplifier with Voltage Offset for GaN-based Switching PAs
/forschung/publikationen/broadband-driver-amplifier-with-voltage-offset-for-gan-based-switching-pas
The paper presents a GaN-based driver amplifier (PSA) module with potential shifting included, suitable for properly driving GaN-HEMTs with digital bit sequences in the microwave range. The PSA is…
Improved Efficiency of Ultraviolet B Light-Emitting Diodes with Optimized p-Side
/forschung/publikationen/improved-efficiency-of-ultraviolet-b-light-emitting-diodes-with-optimized-p-side
The effects of design and thicknesses of different optically transparent p-current spreading layers [short-period superlattice, superlattice (SL), and bulk p-Al0.38Ga0.62N] as well as the type and…
Kilowatt-class, High Duty Cycle, Passively Side-cooled 780 nm Diode Laser Stacks as Pumps for Pulsed MIR Lasers
/forschung/publikationen/kilowatt-class-high-duty-cycle-passively-side-cooled-780nbspnm-diode-laser-stacks-as-pumps-for-pulsed-mir-lasers
A 780nm diode laser pump source is presented that uses passive side-cooling to enable Kilowatt-class output at >10% duty cycle (10ms, 10Hz). Beam quality is M2<360 (BPP<90mm-mrad) and…
Narrow-band multiple-wavelengths DBR-ridge waveguide diode lasers customized for sensor applications
/forschung/publikationen/narrow-band-multiple-wavelengths-dbr-ridge-waveguide-diode-lasers-customized-for-sensor-applications
Monolithic narrow-band multi-wavelength stabilized diode lasers emitting between 760nm and 1064nm for direct sensor applications using Raman- or absorption spectroscopy, MIR upconverson imaging and…
Portable Shifted Excitation Raman Difference Spectroscopy - From Laboratory Investigations to in-situ Agri-Photonics
/forschung/publikationen/portable-shifted-excitation-raman-difference-spectroscopy-from-laboratory-investigations-to-in-situ-agri-photonics
Portable shifted excitation Raman difference spectroscopy (SERDS) will be presented using one-chip dual-wavelength Y-branch DBR diode laser at 785 nm as excitation source. Experimental results from…
Longitudinal Current Crowding as Power Limit in High Power 975 nm Diode Lasers
/forschung/publikationen/longitudinal-current-crowding-as-power-limit-in-high-power-975-nm-diode-lasers
Experiment and simulation of high power diode lasers reveals a longitudinally-varying current density profile, due to spatial hole-burning. Current crowding at the front facet increases with cavity…
A highly efficient GHz switching GaN-based synchronous buck converter module
/forschung/publikationen/a-highly-efficient-ghz-switching-gan-based-synchronous-buck-converter-module
The paper presents a highly efficient GaN-based synchronous buck converter suitable for switching in the lower GHz range. The module includes a very compact 2-stage GaN half-bridge converter MMIC…
Progress in GaAs-based Semiconductor Sources For High Brightness Beam-Combined Applications
/forschung/publikationen/progress-in-gaas-based-semiconductor-sources-for-high-brightness-beam-combined-applications
An overview is presented of studies at the FBH into GaAs-based semiconductor sources tailored for higher brightness in beam-combined applications, by making use of innovative device and packaging…
Non-uniform longitudinal current density induced power saturation in GaAs-based high power diode lasers
/forschung/publikationen/non-uniform-longitudinal-current-density-induced-power-saturation-in-gaas-based-high-power-diode-lasers
The output power of modern 975nm GaAs-based broad area diode lasers is limited by increasing carrier and photon losses at high bias. We use experiment and one-dimensional calculations on these…