Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik
Gustav-Kirchhoff-Straße 4
12489 Berlin
Tel.: +49 30 / 639 226 - 00
Fax: +49 30 / 639 226 - 02

Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik

The Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (FBH) researches electronic and optical components, modules and systems based on compound semiconductors. These devices are key enablers-, that address the needs of today’s society in fields like communications, energy, health and mobility. Specifically, FBH develops light sources from the visible to the ultra-violet spectral range: high-power diode lasers with excellent beam quality, UV light sources and hybrid laser systems. Applications range from medical technology, high-precision metrology and sensors to optical communications in space. In the field of microwaves, FBH develops high-efficiency multi-functional power amplifiers and millimeter wave frontends targeting energy-efficient mobile communications as well as car safety systems. In addition, compact atmospheric microwave plasma sources that operate with economic low-voltage drivers are fabricated for use in a variety of applications, such as the treatment of skin diseases.

The FBH is a competence center for III-V compound semiconductors and has a strong international reputation. FBH’s competence covers the full range of capabilities, from design to fabrication to device characterization.

In close cooperation with industry, its research results lead to cutting-edge products. The institute also successfully turns innovative product ideas into spin-off companies. Thus, working in strategic partnerships with industry, FBH assures Germany’s technological excellence in microwave and optoelectronic research.

Current research topics in electronics:

  • Gallium nitride (GaN) microwave electronics: transistors and amplifiers (hybrid, MMIC)
  • GaN power electronics
  • Terahertz electronics
  • Microwave plasmas

Current research topics in optoelectronics:

  • High-power, high-brightness diode lasers at 0.6 - 1.2 µm
  • High brilliance diode lasers
  • Hybrid laser systems (IR and visible spectral range)
  • Diode lasers for high-precision metrology
  • GaN lasers and UV LEDs


Prof. Dr. Günther Tränkle

Administrative Director (Forschungsverbund e.V.):
Dr. Manuela Urban

Head of Administration:
Nicolas Hübener

Public Relations:
Petra Immerz