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Properties of 62x nm red-emitting single mode diode lasers
/en/research/publications/properties-of-62x-nm-red-emitting-single-mode-diode-lasers
Single-mode lasers in the spectral region between 620 nm and 630 nm are still realized using complex laser systems, such as ring-dye laser or using non-linear frequency shifted lasers, when…
Femtosecond semiconductor laser system with arbitrary intracavity phase and amplitude manipulation
/en/research/publications/femtosecond-semiconductor-laser-system-with-arbitrary-intracavity-phase-and-amplitude-manipulation
In this work we present a laser cavity with a spatial light modulator (SLM), which allows for arbitrary phase and amplitude manipulation. In comparison to previous setups, it allows the manipulation…
Second harmonic pico-second pulse generation with mode-locked 1064nm DBR laser diodes
/en/research/publications/second-harmonic-pico-second-pulse-generation-with-mode-locked-1064nm-dbr-laser-diodes
Detailed experimental investigations of the generation of high-energy short infrared and green pulses with a mode-locked multi-section distributed Bragg reflector (DBR) laser in dependence on the…
Cryogenic ultra-high power infra-red diode laser bars
/en/research/publications/cryogenic-ultra-high-power-infra-red-diode-laser-bars
GaAs-based high power diode lasers are the most efficient source of optical energy, and are in wide use in industrial applications, either directly or as pump sources for other laser media. Increased…
Efficient charge carrier injection into sub-250nm AlGaN multiple quantum well light emitting diodes
/en/research/publications/efficient-charge-carrier-injection-into-sub-250nm-algan-multiple-quantum-well-light-emitting-diodes
The design and Mg-doping profile of AlN/Al0.7Ga0.3N electron blocking heterostructures (EBH) for AlGaN multiple quantum well (MQW) light emitting diodes (LEDs) emitting below 250 nm was…
Experimental investigation of factors limiting slow axis beam quality in 9xx nm high power broad area diode lasers
/en/research/publications/experimental-investigation-of-factors-limiting-slow-axis-beam-quality-in-9xx-nm-high-power-broad-area-diode-lasers
GaAs-based broad-area diode lasers are needed with improved lateral beam parameter product (BPPlat) at high power. An experimental study of the factors limiting BPPlat is therefore presented, using…
Dual-Wavelength Y-Branch Distributed Bragg Reflector Diode Laser at 785 Nanometers for Shifted Excitation Raman Difference Spectroscopy
/en/research/publications/dual-wavelength-y-branch-distributed-bragg-reflector-diode-laser-at-785-nanometers-for-shifted-excitation-raman-difference-spectroscopy
A dual-wavelength Y-branch distributed Bragg reflector (DBR) diode laser at 785 nm is presented as an excitation light source for shifted excitation Raman difference spectroscopy (SERDS). The…
Tunable 975 nm nanosecond diode-laser-based master-oscillator power-amplifier system with 16.3 W peak power and narrow spectral linewidth below 10 pm
/en/research/publications/tunable-975nbspnm-nanosecond-diode-laser-based-master-oscillator-power-amplifier-system-with-163nbspw-peak-power-and-narrow-spectral-linewidth-below-10nbsppm
A spectrally tunable, narrow linewidth master oscillator power amplifier system emitting ns pulses with high peak power is presented. The master oscillator is a distributed feedback ridge waveguide…
Distributed feedback lasers in the 760 to 810nm range and epitaxial grating design
/en/research/publications/distributed-feedback-lasers-in-the-760-to-810nm-range-and-epitaxial-grating-design
We present the results from distributed feedback (DFB) lasers with emission wavelengths ranging from 760 to 810 nm and focus on the optimization of Bragg gratings realized with a patterned GaAsP…
Small linewidths 76x nm DFB-laser diodes with optimized two-step epitaxial gratings
/en/research/publications/small-linewidths-76x-nm-dfb-laser-diodes-with-optimized-two-step-epitaxial-gratings
We present DFB laser diodes emitting in the 76x nm wavelengths range and focus on design and fabrication of the integrated Bragg gratings. Grating functionality is obtained with a periodically…