GEOSET Webinar Livestream

Low-Cost Degenerate Entanglement-Assisted Systems

Abstract: Entanglement represents a unique quantum information feature offering distinct advantages for a wide range of communication and sensing applications. While nondegenerate entanglement assisted (EA) communication schemes have been proven effective, they typically require optical phase-conjugation (OPC), often performed on weak signal photons that are subject to degradation from scattering, absorption, diffraction, and turbulence in free-space optical (FSO) channels. To solve this problem, we recently proposed two approaches: (i) to perform the OPC on bright idler photons and (ii) to employ a degenerate EA (DEA) concept. In this talk, we review our recent approaches to low-cost degenerate EA communications, sensing, and LiDAR over turbulent FSO channels. We also describe a DEA triple-function radar-communication-LiDAR system. To demonstrate the quantum advantage, we conducted 1 Gb/s DEA radar and communication experiments over a terrestrial free-space optical (FSO) link.

Bio: Dr. Djordjevic is a professor of electrical and computer engineering (ECE) and quantum information science at the Department of Electrical and Computer Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, where he directs Quantum Communications and Networking Lab. He used to be a professor of ECE and optical sciences at the University of Arizona, where he is now a Professor Emeritus. He received his PhD degree from the University of Nis, Yugoslavia in 1999. Dr. Djordjevic is the IEEE Fellow. He is also the Optica (formerly OSA) Fellow. Professor Djordjevic has authored or co-authored 13 books, more than 630 journal and conference publications, and he holds 58 US patents. Dr Djordjevic served as Area Editor/Associate Editor/Member of Editorial Board/Guest Editor for various journals including IEEE Trans. Commun., J. Opt. Commun. Networks, IEEE Commun. Lett., IOP J. Optics, Physical Comm. J., Opt. & Quantum Electron., Frequenz, IEEE Sig. Proc. Mag., Entropy, and J. Lightwave Technol. Prior to joining the Florida State University, Dr. Djordjevic held appointments at University of Arizona in Tucson, University of Bristol and University of the West of England in UK, Tyco Telecommunications in USA, National Technical University of Athens in Greece, and State Telecommunication Company in Yugoslavia.