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CS Mantech 2025
/en/events/cs-mantech-2025
FBH will be presenting current research findings at the International Conference on Compound Semiconductor Manufacturing Technology.
Frequency shift detection mechanism in GaAs waveguides with mode-coupled Bragg gratings
/en/research/publications/frequency-shift-detection-mechanism-in-gaas-waveguides-with-mode-coupled-bragg-gratings
Frequency shift detection is crucial for advancing quantum, laser and metrology technologies. Here, we propose a compact design for detecting frequency shift in GaAs waveguides with mode-coupled…
Automated On-Wafer Radio-Frequency Transistor Characterization with Adaptive Probing and Features Extraction with Uncertainties
/en/research/publications/automated-on-wafer-radio-frequency-transistor-characterization-with-adaptive-probing-and-features-extraction-with-uncertainties
This paper describes an autonomous on-wafer S- parameter and DC measurement system for radio frequency (RF) power transistors with an adaptive probing algorithm. The Devices Under Test (DUTs) are…
Fast Optimization of RF Power Transistors with mmWave Active Load-Pull Techniques
/en/research/publications/fast-optimization-of-rf-power-transistors-with-mmwave-active-load-pull-techniques
The paper presents a peak-search method for active continuous wave (CW) load-pull measurements for implementation in an autonomous characterization system aimed at optimizing mmWave RF power…
720 nm diode lasers enhancing cancer diagnostics
/en/research/research-news/720-nm-diode-lasers-enhancing-cancer-diagnostics
We have developed powerful diode laser sources emitting in the Watt-level range at 720 nm. These lasers enable novel quantum interferometry-based sensing for cancer diagnostics.
PCSELs May Redefine Diode Lasers in Industry and Lidar
/en/media-center/media-review/pcsels-may-redefine-diode-lasers-in-industry-and-lidar
Can diode lasers offer high power — and a good beam profile? Photonic-crystal surface-emitting lasers achieve these qualities and show promise for numerous applications.
Contactless patient monitoring: ECG using radar
/en/media-center/media-review/contactless-patient-monitoring-ecg-using-radar
Many rural regions are already facing a shortage of medical care, which is particularly acute when it comes to high-quality diagnostics. Researchers at the Fraunhofer Institute for Reliability and…
An Interlaboratory Comparison of On-Wafer S-Parameter Measurements up to 1.1 THz
/en/research/publications/an-interlaboratory-comparison-of-on-wafer-s-parameter-measurements-up-to-11-thz
This article reports on an interlaboratory measurement comparison involving on-wafer S-parameter measurements from 10 GHz to 1.1 THz. Seven laboratories are involved, and each participant…
Devices with DBR (Distributed Bragg Reflector) Mirror Layers
/en/transfer-services/devices/devices-with-dbr-mirror-layers
Ultrapure DBR mirrors are used e.g. for applications in metrology, for the next generation of atomic clocks or for precision measurements to test quantum electrodynamics. To generate ps- and…