John Fakidis was awarded the Diploma (MEng) in electrical and computer engineering from the Aristotle University of Thessaloniki, Greece in 2011. He was awarded the PhD for his thesis titled 'Optical wireless energy transfer for self-sufficient small cells' from the Institute for Digital Communications, University of Edinburgh in 2017 in collaboration with the industrial partner Nokia, Bell Laboratories in Ireland. He has been a Postdoctoral Research Associate in Light Fidelity (LiFi) Systems at the LiFi Research and Development Centre (LRDC) of the University of Edinburgh until 2020. John holds world records in data rates in simultaneous optical wireless data and power transfer by using III-V photovoltaic cells in collaboration with Fraunhofer, ISE in Germany. He is currently the Optical Engineer at LRDC working on the design and characterisation of state of the art LiFi optical subsystems.