Company Profiles

Technical University Berlin -…, Berlin Research Institution, Laser Technology, Photonics and Quantum Technologies for Communication and Sensors, Optical Analytics, Biophotonics and Ophalmic Optics

The group's activities are focused on the research of light-matter-interaction and its applications. The research, development and education are carried out in an international surrounding of science and industry. Different materials are investigated for their linear and nonlinear properties and transferred into possible applications. Current topics are:

Nonlinear Optics and Optical Spectroscopy

  • Colloidal nanoparticles and quantum dots in life sciences, labeling, as a biomarker, in photovoltaics and as single-photon sources
  • Semiconductor structures of low dimensionality and their optical properties
  • Nanoscaled Quantum Systems as potential ultrafast amplifiers and switches
  • Hybrid semiconductor / metal nanostructures for fundamental principles and applications in active and passive nano-plasmonics

Laser Development and Laser Material Processing

  • Development of powerful diode and lamp pumped solid-state lasers in the near infrared spectral range from 1 to 2 µm, especially in the eye-safe region from 1.5 to 1.7 µm for material processing, medical and remote sensing applications
  • Optimization of neodymium and erbium based laser sources with respect to their spectral and spatial characteristics
  • Spectroscopic investigation of crystalline materials in terms of stimulated Raman scattering and further second and third order nonlinear effects
  • Development of compact Raman lasers for efficient conversion of the emission wavelength of existing laser sources

Optical Thin Film Coatings

  • Calculation, preparation and characterization of dielectric and metal thin film systems for reflective and anti-reflective optical surfaces and for the production of spectral filters, beam splitters and functionalized surfaces
  • Antireflection coatings of the terminal surfaces of glass fibers used for the construction of fiber lasers and for transmitting high laser power, e.g. used in material processing and medical therapeutic applications
  • Manufacture of hybrid thin film structures on the end-faces of optical fibers for the development of optical fiber sensors, fiber coupled modulators for data communication, and other innovative applications

Silicon-Photonics

  • Development and characterisation of integrated electro-optic components fabricated in a BiCMOS production process on Silicon-On-Insulator (SOI) wafers. This includes the development of optical couplers, splitters, spectral filters and resonators as well as active electro-optic structures e.g. modulators, Raman amplifiers and delay generators
  • In addition, complex photonic integrated circuits are designed for transceiver applications in optical data communication
  • The worldwide smallest high speed modulator in SOI has been demonstrated at the Institute of Optics an Atomic Physics

Technical University Berlin - Institut für Optik und Atomare Physik

Straße des 17. Juni 136
10623 Berlin

T: +49 (0)30 / 314 21699