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Mode Control for High Performance Laser Diode Sources
/forschung/publikationen/mode-control-for-high-performance-laser-diode-sources
We report on recent progress in the control of optical modes toward the improvement of commercial high-performance diode laser modules. Control of the transverse mode has allowed scaling of the…
Master oscillator power amplifier 3D assemblies based on grating coupled laser diodes
/forschung/publikationen/master-oscillator-power-amplifier-3d-assemblies-based-on-grating-coupled-laser-diodes
We report on novel architectures of the hybrid master oscillator power amplifier (MOPA) assemblies incorporating vertically stacked surface-emitting laser diodes. Optical coupling between the MO and…
Diode pumping of Nd:ASL and its frequency doubling for blue emission around 450 nm
/forschung/publikationen/diode-pumping-of-ndasl-and-its-frequency-doubling-for-blue-emission-around-450-nm
We present the diode pumping of a Nd-doped strontium and lanthanum (Nd:ASL) crystal Sr1-xLax-yNdyMgxAl12-xO19 (0.05 <= x <= 0.5; y = 0.05) for second harmonic generation around 450 nm. In…
Rayleigh length dependent SHG conversion at 488nm using a monolithic DBR tapered diode laser
/forschung/publikationen/rayleigh-length-dependent-shg-conversion-at-488nm-using-a-monolithic-dbr-tapered-diode-laser
We present a study of the single pass SHG conversion as a function of the Rayleigh length (RL) and beam diameter (BD) using a monolithic distributed Bragg reflector (DBR) tapered laser. The DBR…
Stable and compact mounting scheme for > 1kW QCW diode laser stacks at 940nm
/forschung/publikationen/stable-and-compact-mounting-scheme-for-gt-1kw-qcw-diode-laser-stacks-at-940nm
For the pumping of solid state lasers with high peak power pulses up to the TW range QCW diode laser stacks with pulse lengths between 200µs and 2ms are used. To realize long-term stable pump…
650 nm tapered lasers with 1 W maximum output power and nearly diffraction limited beam quality at 500 mW
/forschung/publikationen/650nbspnm-tapered-lasers-with-1nbspw-maximum-output-power-and-nearly-diffraction-limited-beam-quality-at-500nbspmw
High-brightness 650 nm tapered lasers with output powers up to 1 W and nearly diffraction limited beam quality at 500 mW were realized. The vertical structure is based on an InGaP single…
1 W reliable operation of broad area lasers and 8 W reliable operation of 5 mm wide laser bars at 650 nm
/forschung/publikationen/1nbspw-reliable-operation-of-broad-area-lasers-and-8nbspw-reliable-operation-of-5nbspmm-wide-laser-bars-at-650nbspnm
Reliability tests for 650 nm broad area lasers and bars with GaInP quantum wells embedded in AlGaInP waveguide layers and n-AlInP and p-AlGaAs cladding layers will be presented. Reliable…
cw, 325nm, 100mW semiconductor laser system as potential substitute for HeCd gas lasers
/forschung/publikationen/cw-325nm-100mw-semiconductor-laser-system-as-potential-substitute-for-hecd-gas-lasers
In the last decades, diode laser systems conquered the spectral range step-by-step from conventional gas lasers, wherever they can match or outperform in optical specifications. Although highly…
High brightness diode lasers with very narrow vertical divergence
/forschung/publikationen/high-brightness-diode-lasers-with-very-narrow-vertical-divergence
A narrow vertical divergence of about 30° including 95% of power is highly desired in many applications. Principal designs for narrow divergence diode lasers like simple broad waveguide and more…
High power DFB lasers for D1 and D2 caesium absorption spectroscopy and atomic clocks
/forschung/publikationen/high-power-dfb-lasers-for-d1-and-d2-caesium-absorption-spectroscopy-and-atomic-clocks
Distributed feedback ridge-waveguide lasers, emitting up to 250 mW in a single lateral and longitudinal mode at 852 nm and 894 nm are presented. A threshold current of 40 mA and a…