Coexistence of Discrete-Variable QKD with WDM Classical Signals in the C-Band for Fiber Access Environments. - Dimitris Zavitsanos; Giannis Giannoulis; Adam Raptakis; Christos P. Papapanos; Fotini Setaki; Eleni Theodoropoulou; George L. Lyberopoulos; Christos Kouloumentas; Hercules Avramopoulos (ICTON, 2019)

Optical Beamforming Networks Supporting Multibeam and Multicast Operation. - Christos Tsokos; Efstathios Andrianopoulos; Adam Raptakis; Nikolaos K. Lyras; Lefteris Gounaridis; Panos Groumas; Hercules Avramopoulos; Christos Kouloumentas (ICTON, 2020)

Analysis of Photonics-Enabled FMCW THz Spectrometers for Non-Destructive Thickness Measurements. - E. Loukisa; Christos Tsokos; Panos Groumas; Adam Raptakis; Georgios Megas; Efstathios Andrianopoulos; Lars Liebermeister; Robert B. Kohlhaas; Ch. Kouloumentas; Hercules Avramopoulos (ICTON, 2024)

Demonstration of a Silicon Nitride Optical Beamforming Network Based on Blass-Matrix Architecture. - E. Loukisa; Efstathios Andrianopoulos; Adam Raptakis; Georgios Megas; Dimitrios Gounaridis; A. Grammatikaki; Roelof Bernardus Timens; P. W. L. van Dijk; Lefteris Gounaridis; Panos Groumas; Christos Tsokos; Ch. Kouloumentas; et al. (OFC, 2025)