Members of NanOp

FERDINAND-BRAUN-INSTITUT für Höchstfrequenztechnik (FBH), Berlin Director: Dr. G. Tränkle Head of Optoelectronics: Dr. G. Erbert

The Ferdinand-Braun-Institut für Höchstfrequenztechnik (FBH) explores cutting-edge technologies in the fields of microwaves and optoelectronics. It develops high-frequency devices and circuits for applications in communications and sensor technology. High-power diode lasers with excellent beam quality are produced for materials processing, laser technology, medical technology and high precision metrology. FBH also conducts basic investigations on new materials systems like nitrides for future applications such as light sources with short wavelengths or transistors for high voltages.

The FBH is an internationally recognized competence center for III/V-compound semiconductors. It operates industry-compatible and flexible clean room laboratories with vapor phase epitaxy units and a III/V-semiconductor process line. The work relies on comprehensive materials and process analysis equipment, a state-of-the-art device measurement environment, and excellent tools for simulation and CAD. In close cooperation with industry, its research results lead to cutting-edge products. The FBH also succeeds in turning innovative product ideas into spin-off companies.

The FBH develops high-value products and services for its partners in the research community and industry which are tailored precisely to fit individual needs. The institute offers its international customer base complete solutions and know-how as a one-stop agency - from design to ready-to-ship modules.

Current research topics:

Microwaves
* Gallium arsenide electronics with heterojunction bipolar transistors: MMICs up to 80 GHz and power amplifiers up to 10 GHz
* Gallium nitride electronics: microwave power transistors up to 10 GHz (power: >> 10 Watt)

Optoelectronics
* High-power, high-brightness diode lasers at 0.6 - 1.2 µm
* High brilliance diode lasers: linewidth < 10 MHz
* Semiconductor disc lasers
* Hybrid laser systems
* Gallium nitride based LEDs and lasers