The IQO group develops novel optical devices and methods for possible future applications in quantum information processing, quantum communication and for fundamental quantum experiments. Exploiting the potential of integrated optical devices enables on the one hand the realization of compact, miniaturized and rugged quantum lights sources and converters. Moreover, on the other hand integrated quantum optics enables the implementation of quantum optic experiments with high complexity. Both aspects can be considered to be an important milestone towards the development of quantum technologies. These promise exciting novel applications by exploiting specific quantum properties which are not accessible with classical resources.