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AlGaN/GaN/GaN:C back-barrier Schottky diodes for power switching
/forschung/publikationen/alganganganc-back-barrier-schottky-diodes-for-power-switching
A GaN-based heterostructure lateral Schottky diode with insulating carbon-doped GaN back-barrier with high reverse bias blocking capability for high voltage operation in power switching is presented.…
Diode pumped high power operation of a femtosecond laser inscribed Yb:YAG waveguide laser
/forschung/publikationen/diode-pumped-high-power-operation-of-a-femtosecond-laser-inscribed-ybyag-waveguide-laser
Waveguides were written into single crystalline Yb(7%):YAG with a femtosecond laser. Laser oscillation of the waveguides without external mirrors at an output coupling transmission of 99% was…
AlGaN-based Ultraviolet Lasers - Applications and Materials Challenges
/forschung/publikationen/algan-based-ultraviolet-lasers-applications-and-materials-challenges
Recent progress in the development of ultraviolet laser diodes will be reviewed. The effect of the heterostructure design on the gain characteristics as well as epitaxial growth challenges for…
Narrow-Linewidth High-Power Semiconductor-based Laser Module
/forschung/publikationen/narrow-linewidth-high-power-semiconductor-based-laser-module
We demonstrate a compact micro-integrated high-power master oscillator power amplifier laser module implemented on a footprint of 50 x 10mm2. The module features stable single-mode…
Shoe box all semiconductor high power femtosecond laser system
/forschung/publikationen/shoe-box-all-semiconductor-high-power-femtosecond-laser-system
We demonstrate a shoe box sized electrically driven all semiconductor femtosecond laser system. With our concept pulse durations down to 200 fs with multi-kW peak power were already achieved.
Influence of the acceptance bandwidth on frequency doubling of ps pulses in a ppMgO:LN ridge waveguide
/forschung/publikationen/influence-of-the-acceptance-bandwidth-on-frequency-doubling-of-ps-pulses-in-a-ppmgoln-ridge-waveguide
Frequency doubling of ps pulses generated by a monolithic DFB tapered MOPA at 1064 nm in ppMgO:LN ridge waveguides is investigated. An increase in the SHG acceptance bandwidth allows to double…
Compact 1064 nm ps-light source on a micro bench with free adjustable repetition rate and nJ pulse energy
/forschung/publikationen/compact-1064nbspnm-ps-light-source-on-a-micro-bench-with-free-adjustable-repetition-rate-and-nj-pulse-energy
A compact 1064 nm ps-light source based on an optical micro bench with a footprint of 4x5 cm is realized. The repetition rate is freely adjustable and it emits pulses with 100 W peak…
Hybrid-integrated ECDL for precision Rubidium spectroscopy in space
/forschung/publikationen/hybrid-integrated-ecdl-for-precision-rubidium-spectroscopy-in-space
We present a micro-integrated and tunable extended cavity diode laser, that provides high power and narrow linewidth emission for space based precision spectroscopy of the Rb D2-line at…
Octave-Spanning Supercontinuum from an Efficient Gigahertz Femtosecond Yb:KGW Laser with 2.2-W Average Power
/forschung/publikationen/octave-spanning-supercontinuum-from-an-efficient-gigahertz-femtosecond-ybkgw-laser-with-22-w-average-power-1
We present Yb:KGW lasers at 1-GHz and 2.4-GHz repetition rate generating sub-300-fs pulses with >2.2-W average power and >38% optical-to-optical efficiency. At 1 GHz, we generate an…
Octave-Spanning Supercontinuum from an Efficient Gigahertz Femtosecond Yb:KGW Laser with 2.2-W Average Power
/forschung/publikationen/octave-spanning-supercontinuum-from-an-efficient-gigahertz-femtosecond-ybkgw-laser-with-22-w-average-power
We present Yb:KGW lasers at 1-GHz and 2.4-GHz repetition rate generating sub-300-fs pulses with >2.2-W average power and >38% optical-to-optical efficiency. At 1 GHz, we generate an…