Giannis Giannoulis received the Ph.D. degree in 2017 working on plasmonic circuitries for switching concepts and is currently as a Postdoctoral Researcher with the photonics communications research laboratory (PCRL), National Technical University of Athens (NTUA),Athens, Greece. His research interests focuses on next generation optical technologies and networks assisting the needs of 5G/B5G infrastructure and the security of its optical transport layer. His research also focuses on the design and development of novel optical systems/sub-systems in the field of emerged quantum communications.