Satellite-based links are of key importance to provide ever-increasing data rates. Free-space optics is a technology that can help satisfy this demand thanks to the vast amounts of bandwidth available in the THz regime. The Eindhoven University of Technology recognizes a crucial paradigm shift, from intensitymodulated to coherent transmission, necessary in next generation FSO communication systems to provide high throughputs. To address this challenge, we are excited to announce an EngD position in the field of experimental FSO communications.