Taofiq K. Paraïso
Team Leader, Senior Research Scientist
Toshiba Europe Limited
Dr. Taofiq Paraiso is a Team Leader at Toshiba Europe, Cambridge Research Lab, UK. He is responsible for the development of photonic integrated circuits for quantum key distribution and quantum random number generation, as well as their system integration into practical chip-based QKD devices. Dr Paraiso has over 15 years of academic and industrial research experience in quantum photonics, semiconductor physics, light-matter interactions and nanofabrication. He held research positions at the California Institute of Technology and the Max-Planck Institute for the Science of Light, Germany, and received his PhD in Physics from the Swiss Federal Institute of Technology Lausanne (EPFL) in Switzerland.
Presentations
Advancing Quantum Communications with PICs
Quantum key distribution (QKD) exploits the principles of quantum mechanics and information theory to exchange symmetric encryption keys. In this physical alternative to our conventional computational cryptographic schemes, remote parties communicate information encoded onto the quantum states of single photons, which enables information leakage to be precisely quantified and ensures maximal levels of confidentiality of the channel used for key exchange. While this technology has matured from theoretical concepts to field trials and commercial products in recent years, the required optical hardware is currently expensive and bulky, and offers limited scalability. Photonic integrated circuits (PICs) promise a route to scalability and industrialisation that will allow QKD to become a pervasive technology within society. In recent years, Toshiba actively contributed to establish PICs as a viable technology for QKD. Through a series of key results obtained at the Cambridge Research Lab, we will review how monolithic integration, hybrid integration and advanced laser technology can be used efficiently to engineer state-of-the-art QKD systems able to address complex deployment challenges in all segments of our optical communication networks.