The application of quantum physical phenomena will revolutionize the transmission and processing of information in terms of data security. Research in the field of tap-proof encryption using quantum key distribution (QKD) is leading the way. The necessary communication-technical basics for increasing the key transmission rates are developed within the scope of this research group. Our research goals include increasing the control frequencies of photon sources, reducing the transmission losses of quantum mechanical states, and improving the time resolution of detectors. The focus is not only on their miniaturized integration as a basis for acceptance in e.g. mobile systems. Within the scope of the research, a heterogeneous integration solution for the realization of compact quantum optical components and modules and their fabrication on wafer-scale shall be developed.
Within the scope of the research, a heterogeneous integration solution for the realization of compact quantum optical components and modules is to be developed. Based on a glass-ceramic composite technology developed at the InQuoSens site in Ilmenau, which is patent-pending, a system-in-package platform is to be created with which highly integrated combined microelectronic/optical systems can be realized. This system approach is not only aimed at miniaturization, but also builds on wafer-level structuring technologies, which is a prerequisite for a future transfer to industry. To this end, the following focal points are to be addressed in particular:
- Technological realization of optical surface quality and high-precision electrical contacting structures on glass-ceramic composite substrates,
- Surface and volume functionalization of the optical layer by means of plasma- and UKP-laser-based processing
- Design and integration of quantum optical functional structures in glass-ceramic substrates
- System integration of electronic components.
