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GaN boules grown by high rate HVPE
/forschung/publikationen/gan-boules-grown-by-high-rate-hvpe
The most promising approach for GaN substrate fabrication on the base of HVPE consists in the growth of thick GaN crystals and subsequent cutting of these boules into slices followed by conventional…
1 W at 531 nm generated in a ppMgO:LN planar waveguide by means of frequency doubling of a DBR tapered diode laser
/forschung/publikationen/1nbspw-at-531nbspnm-generated-in-a-ppmgoln-planar-waveguide-by-means-of-frequency-doubling-of-a-dbr-tapered-diode-laser
In this work, we investigate experimentally second-harmonic generation (SHG) in a periodically poled 5 %mol MgO doped LiNbO3 (ppMgO:LN) planar waveguide. As a pump source a 6 mm long distributed…
Micro-integrated 1 Watt semiconductor laser system with a linewidth of 3.6 kHz
/forschung/publikationen/micro-integrated-1nbspwatt-semiconductor-laser-system-with-a-linewidth-of-36nbspkhz
We demonstrate a compact, narrow-linewidth, high-power, micro-integrated semiconductor-based master oscillator power amplifier laser module which is implemented on a footprint of…
1 W semiconductor based laser module with a narrow linewidth emitting near 1064 nm
/forschung/publikationen/1nbspw-semiconductor-based-laser-module-with-a-narrow-linewidth-emitting-near-1064nbspnm
We demonstrate 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 50 x 10mm2. The…
High-brightness distributed-bragg-reflector tapered diode lasers: pushing your application to the next level
/forschung/publikationen/high-brightness-distributed-bragg-reflector-tapered-diode-lasers-pushing-your-application-to-the-next-level
We demonstrate monolithic distributed-Bragg-reflector tapered diode lasers having an output power up to 12 W, a small spectral width of below Δλ<10 pm and a beam quality close to the…
High-power (1.1W) green (532nm) laser source based on single-pass second harmonic generation on a compact micro-optical bench
/forschung/publikationen/high-power-11w-green-532nm-laser-source-based-on-single-pass-second-harmonic-generation-on-a-compact-micro-optical-bench
We demonstrate a compact high-power green (532nm) laser module based on single-pass second harmonic generation. The pump source is a distributed Bragg reflector tapered diode laser. The frequency…
Combination of Low-Index Quantum Barrier and Super Large Optical Cavity Designs for Ultranarrow Vertical Far-Fields From High-Power Broad-Area Lasers
/forschung/publikationen/combination-of-low-index-quantum-barrier-and-super-large-optical-cavity-designs-for-ultranarrow-vertical-far-fields-from-high-power-broad-area-lasers
When active regions that use low refractive index quantum barriers (LIQB) are combined with super large optical cavity (SLOC) designs in GaAs-based diode lasers, high-power operation with extremely…
Picosecond Spectral Dynamics of Gain-Switched DFB Lasers
/forschung/publikationen/picosecond-spectral-dynamics-of-gain-switched-dfb-lasers
We study the generation of picosecond pulses by gain-switching of distributed feedback ridge-waveguide laser diodes. By pumping with short current pulses without d.c. bias, we obtain laser pulses…
Bauteile aus GaN - Sicht auf die Halbleitertechnologie
/forschung/publikationen/bauteile-aus-gan-sicht-auf-die-halbleitertechnologie
Seit etwa 8 Jahren wird über Entwicklungen von GaN-Schalttransistoren und GaN-Schottkydioden berichtet, die für leitungselektronische Anwendungen geeignet sein können. Seit 2 Jahren erfährt das…
Picosecond pulses with 50W peak power and reduced ASE background from an all-semiconductor MOPA system
/forschung/publikationen/picosecond-pulses-with-50w-peak-power-and-reduced-ase-background-from-an-all-semiconductor-mopa-system
Using a single-stage all-semiconductor master oscillator-power amplifier system, consisting of a Q-switched distributed Bragg reflector laser as master oscillator and a tapered power amplifier, we…