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Diversity
/en/career/fbh-as-employer/diversity
We live diversity - it is an essential part of our institute, one of the leading international research institutes for III-V compound semiconductors! Currently, we employ over 350 colleagues from…
GaN-based Power Devices Design and Development with Silvaco TCAD Solution
/en/events/gan-based-power-devices-design-and-development-with-silvaco-tcad-solution
Dr. Eldad Bahat-Treidel Ferdinand-Braun-Institut
2 nm continuously tunable 488 nm micro-integrated diode laser based SHG light source for Raman spectroscopy
/en/research/publications/2-nm-continuously-tunable-488-nm-micro-integrated-diode-laser-based-shg-light-source-for-raman-spectroscopy
Raman spectroscopy in the visible spectral range is of great interest due to resonant Raman effects. Nevertheless, fluorescence and ambient light can mask the weak Raman lines. Shifted excitation…
High-power operation of coherently coupled tapered laser diodes in an external cavity
/en/research/publications/high-power-operation-of-coherently-coupled-tapered-laser-diodes-in-an-external-cavity
We demonstrate a rear-side phase-locking architecture with two high-brightness diode lasers. This technique is based on the passive phase-locking of emitters in an external cavity on their rear…
940nm QCW diode laser bars with 70% efficiency at 1 kW output power at 203K: analysis of remaining limits and path to higher efficiency and power at 200K and 300K
/en/research/publications/940nm-qcw-diode-laser-bars-with-70-efficiency-at-1-kw-output-power-at-203k-analysis-of-remaining-limits-and-path-to-higher-efficiency-and-power-at-200k-and-300k
Both high-energy-class laser facilities and commercial high-energy pulsed laser sources require reliable optical pumps with the highest pulse power and electro-optical efficiency. Although commercial…
Assessing the Influence of the Vertical Epitaxial Layer Design on the Lateral Beam Quality of High-Power Broad Area Diode Lasers
/en/research/publications/assessing-the-influence-of-the-vertical-epitaxial-layer-design-on-the-lateral-beam-quality-of-high-power-broad-area-diode-lasers
GaAs-based high-power broad-area diode lasers deliver optical output powers Popt > 10W with efficiency > 60%. However, their application is limited due to poor in-plane beam…
New class of compact diode pumped sub 10 fs lasers for biomedical applications
/en/research/publications/new-class-of-compact-diode-pumped-sub-10-fs-lasers-for-biomedical-applications
Diode-pumping Ti:sapphire lasers promises a new approach to low-cost femtosecond light sources. Thus in recent years much effort has been taken just to overcome the quite low power and low beam…
Influence of the LED heterostructure on the degradation behavior of (InAlGa)N-based UV-B LEDs
/en/research/publications/influence-of-the-led-heterostructure-on-the-degradation-behavior-of-inalgan-based-uv-b-leds
In this paper we report on the influence of the heterostructure design of (InAlGa)N-based UV-B LEDs grown by metal-organic vapor phase epitaxy on sapphire substrates on the degradation behavior of…
Generation of 7 W nanosecond pulses with 670 nm ridge-waveguide lasers
/en/research/publications/generation-of-7-w-nanosecond-pulses-with-670-nm-ridge-waveguide-lasers
The aim of this paper is to present detailed experimental and theoretical investigations of the behavior of ridge-waveguide (RW) lasers emitting at 670 nm under injection of sub-ns current…
Pulsed hybrid dual wavelength Y-branch-DFB laser - tapered amplifier system suitable for water vapor detection at 965 nm with 16 W peak power
/en/research/publications/pulsed-hybrid-dual-wavelength-y-branch-dfb-laser-tapered-amplifier-system-suitable-for-water-vapor-detection-at-965-nm-with-16-w-peak-power
A master oscillator power amplifier system emitting alternatingly at two neighbored wavelengths around 965 nm is presented. As master oscillator (MO) a Y-branch DFB-laser is used. The two…