Towards a Miniaturized Version of the Hanbury-Brown-Twiss Configuration

An important step towards the commercialization of quantum technology is the miniaturization of nowadays tabletop setups. The Hanbury Brown-Twiss (HBT) configuration is an important building block in many quantum optics experiments. Within this contribution, we present and compare different concepts for realizing a miniaturized, fiber-coupled HBT configuration, which will be robust and adjustment free. The design process is based on ray tracing simulations, with the aim of finding the best compromise regarding the level of miniaturization and detection efficiency. As an application example, the detection of the luminescence of two different charge states of nitrogen vacancy (NV) centers in diamond is used. For this reason, in contrast to the actual HBT experiment, a dichroic beam splitter is used.