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AlGaN/GaN microwave power transistors: Focussed optimization of linearity and efficiency
/en/research/research-news/algangan-microwave-power-transistors-focussed-optimization-of-linearity-and-efficiency
The linearity of AlGaN/GaN heterojunction field-effect transistors (HFETs) is one of the key parameters in modern telecom systems. The FBH works on optimizing this feature to design GaN-based RF…
Cost-Effective Packaging for 77 GHz Automotive Radar
/en/research/research-news/cost-effective-packaging-for-77-ghz-automotive-radar
Radar systems in the 77 GHz range have become an essential part of the comfort and safety features in high-end cars. One of the dominant cost factors for such systems is packaging. LTCC…
IEEE Journal of Quantum Electronics - publication & cover picture
/en/media-center/media-review/ieee-journal-of-quantum-electronics-publication-cover-picture
FBH appears prominently on the cover of the renowed IEEE Journal of Quantum Electronics latest issue no. 47. The corresponding publication with the title "Novel Approach to Finite-Aperture…
Internal gratings create powerful, spectrally pure lasers with high efficiencies
/en/media-center/media-review/internal-gratings-create-powerful-spectrally-pure-lasers-with-high-efficiencies
The combination of reliable output powers of 7W, peak power conversion efficiencies in excess of 60 percent and spectral widths below 1 nm can be realized by incorporating Integrating distributed…
High quality GaN boules
/en/research/research-news/high-quality-gan-boules
Efficient blue-violet laser diodes with high reliability and long device lifetimes require GaN substrates with high material quality at affordable prices. As an alternative approach to growth on…
Semiconductor Disk Lasers: a scalable short wavelength laser
/en/research/research-news/semiconductor-disk-lasers-a-scalable-short-wavelength-laser
Disk lasers as optically pumped surface emitters combine the high beam quality of a vertically emitting laser with a high output power. FBH succeeded in fabricating InGaN disk lasers with a peak…
Mikrosystemlichtquelle für den roten Spektralbereich
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Scientists at the FBH succeeded to develop a particularly small red laser source for applications in display technology.
1 W master oscillator power amplifier laser modules with narrow linewidth for applications in space
/en/research/research-news/1-w-master-oscillator-power-amplifier-laser-modules-with-narrow-linewidth-for-applications-in-space
The FBH succeeded to realize a compact and rugged micro-integrated master oscillator power amplifier (MOPA) that features a narrow linewidth with high-power output. It is thus suitable for a…
Raman-Spektroskopie mit Mikrosystemlichtquellen
/en/media-center/media-review/raman-spektroskopie-mit-mikrosystemlichtquellen
By means of Raman spectroscopy, material properties such as crystallinity, orientation and composition can be examined with elevated specificity. A new microsystems light source enables to use these…
Mit Sandwich-Chips zu hoher Leistung und Frequenz
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Even in special fields such as semiconductor technology seperate worlds exist: scientists often work independently on silicon-based CMOS circuits and III-V semiconductors, reports Prof. Wolfgang…