Take part in our new event format: LightTrans User Meetups! A new way of interacting virtually with our optical engineers and sales representatives. The event will take place regularly, each time centered around a different topic. Interferometer-based optical setups play an important role in modern applications like optical metrology. Such setups often consist of multi-disciplinary optical components. Due to the complexities and effects of interest, this necessitates accurate and efficient ways of performing the modeling of the system. For this purpose, VirtualLab Fusion applies Field Tracing, which is a simulation approach fully based on physical optics and founded on a fully electromagnetic representation of light. Hence it automatically includes the coherence and polarization effects which are of major interest for modern interferometers.