With the advent of quantum technology, the need for affordable, flexible and robust laboratory experiments not only for students, but also at high school level is increasing. Here, for the first time, we report on a simple modular 3D printed low-cost (10 000 €), but also have shortcomings from a didactical point of view, as all the components of the setup are hidden within a ’black box’, doomed to be successful ’plug and play’. In contrast, our open-source experimental kit consists of optical components that are placed inside 3D printed open-framed cubes, that can be arranged freely on a grid. This modular and flexible design can provide an inquiry-based learning experience both at undergraduate and high school level.
Stegemann et al. (Thu,) studied this question.