Chair for Technology of Optical Systems (TOS)

The RWTH Aachen University was established in 1870 in Aachen, Germany as “Königlich Rheinisch-Westphälische Polytechnische Schule zu Aachen”. Today it is including 9 faculties with altogether 260 institutes. More than 42.200 students are enrolled in 144 courses of study. The RWTH Aachen University employs approximately 9.200 staff members, including 538 Professors and 5.200 scientific assistants. The annual total budget is round about 840 Million Euros. Almost 330 Million Euros of external funding through research programs indicate the university’s strong industrial alignment and illustrate considerable research potential.

The ambliFibre project involves two departments of the RWTH Aachen University, namely the Teaching and Research Field for Design and Development of Microsystems (KEmikro) and the Chair for Technology of Optical Systems (TOS).

Founded in 2004, the Chair for Technology of Optical Systems is part of the faculty of mechanical engineering at RWTH Aachen University. It is one of four chairs LLT, TOS, NLD and EUV which are located in the building of the Fraunhofer-Institute for Laser Technology.

Professor Peter Loosen is Head of Chair and is deputy director of the Fraunhofer-Institute for Laser Technology ILT. The chair is located in the ILT and works in close co-operation and coordination with the Fraunhofer ILT. A comprehensive technical equipment and substantiated know-how are available for research and development. The chair carries out research and development in the areas of optical systems for lasers and laser applications, Freeform Optics and EUV Technology.

In order to realize innovative applications in laser material processing, the demand for flexible and dynamic optical systems increases and requires the integration of active and controlled components into optical systems. Besides an automated positioning of optical elements, for example flexible beam shaping elements with a high number of degrees of freedom offer diverse opportunities, which are investigated by the Chair. Our main activities in this field are:

  • Design of optics with variable (zoom) properties
  • Integration of actors and sensors into optical systems
  • Development of electro-optical modulators (Pockel’s cell for miniaturized marking laser)
  • Real-time control using field-programmable gate array FPGA


RWTH Aachen University
Chair for Technology of Optical Systems (TOS)
Marcel Prochnau
Steinbachstraße 15
52074 Aachen
→ Website “TOS”