Sotirios Tsavdaridis

Sotirios Tsavdaridis is a PhD Candidate in the School of Physics at the Aristotle University of Thessaloniki (AUTh), Greece. His research focus is centered on the intersection of Optics, Photonics, and Quantum Technologies, with a specific application in Satellite Communications and Quantum Key Distribution (QKD). This area of study is crucial for developing the next generation of secure communication networks. His work involves the engineering and demonstration of advanced hardware components necessary for establishing quantum links between ground stations and orbiting satellites. A specific contribution mentioned in public data relates to the design and testing of a compact, high-isolation C-band optical ground terminal for satellite QKD. This terminal is engineered to achieve extremely high levels of daylight background suppression and crosstalk noise isolation. The practical goal of this research is to validate the feasibility of integrating satellite-based QKD with existing urban fiber communication infrastructure. His studies often involve collaboration with researchers from other institutions, such as the National Technical University of Athens (NTUA), highlighting the interdisciplinary nature of developing secure quantum communication technologies.