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A 4 GHz digital class-E outphasing PA for highly efficient 5G base stations
/en/research/research-news/a-4-ghz-digital-class-e-outphasing-pa-for-highly-efficient-5g-base-stations
FBH has realized the first GaN-based digital class-E outphasing power amplifier module for 5G applications. The design concept is an important step to push efficiency of 5G base stations and to…
DBR tapered laser at 660 nm as miniaturized pump source for quantum optical coherence tomography
/en/research/research-news/dbr-tapered-laser-at-660-nm-as-miniaturized-pump-source-for-quantum-optical-coherence-tomography
The FBH has developed a red-emitting DBR tapered laser at a wavelength of 660 nm. With an almost single-mode emission and more than 1 W optical output power, this laser is suitable to…
A new route to lattice-matched base layers for UV LEDs – the role of oxygen in high-temperature annealing of AlGaN
/en/research/research-news/a-new-route-to-lattice-matched-base-layers-for-uv-leds-the-role-of-oxygen-in-high-temperature-annealing-of-algan
Improved material quality of aluminum gallium nitride (AlGaN) was achieved by high-temperature annealing using a sapphire (Al2O3) cover to protect the surface. Oxygen helps to maintain optical…
Smart laser system for atom interferometer-based quantum sensors
/en/research/research-news/smart-laser-system-for-atom-interferometer-based-quantum-sensors
A novel Bragg grating-based frequency reference module complements our latest generation of laser modules. It facilitates accurate frequency control. Autonomous operation of the combined laser system…
Precision engineering of the thermal profile in high-power broad-area lasers: an innovative approach for brightness scaling
/en/research/research-news/precision-engineering-of-the-thermal-profile-in-high-power-broad-area-lasers-an-innovative-approach-for-brightness-scaling
FBH researchers developed an effective technique to manipulate temperature distribution within broad emitters. It has been shown that a well-defined emitter sub-structure can flatten the adverse…
Improved performance of far-UVC LEDs by mounting on a thermally optimized Al-core PCB
/en/research/research-news/improved-performance-of-far-uvc-leds-by-mounting-on-a-thermally-optimized-al-core-pcb
By implementing optimizations to our Al-core PCB design, reducing the thermal resistance, FBH has observed an increase of up to 20% in the emission power of far-UVC-LEDs.
Spatially resolved light emission provides insight into the degradation of UV LEDs
/en/research/research-news/spatially-resolved-light-emission-provides-insight-into-the-degradation-of-uv-leds
FBH and MBI scientists spatially mapped the light emission from the active region of aged LEDs under electrical and optical excitation. This provided insights into the degradation mechanisms and the…
Efficient coating – dual ICP plasma source for silicon dioxide deposition
/en/research/research-news/efficient-coating-dual-icp-plasma-source-for-sio2-deposition
We have developed a novel dual and convergent arrangement of ICP sources in cooperation with Ruhr University Bochum and tested it to deposit primarily SiO2. Due to the versatile setup possibilities,…
Podcast "Weiß der Adler" - Viren & Blut
/en/media-center/press-releases/podcast-weiss-der-adler-viren-blut
Dr. Sven Einfeldt & Dr. Neysha Lobo Ploch explain how our UVC LEDs can be used for disinfection in medicine, what the challenges are and how we are currently developing our systems.
Newly published: frequent on high-power diode lasers
/en/media-center/press-releases/newly-published-frequent-on-high-power-diode-lasers
The current frequent issue focuses on our developments in the field of high-power diode lasers and their applications.