Dr. Nikolaos K. Lyras Profile

Dr. Nikolaos K. Lyras

at National Technical Univ of Athens

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Author

Publications (7)

Proceedings Article | 12 July 2023 Open Access

MEO satellite-to-ground Decoy-State QKD links realistic performance analysis

Argiris Ntanos, Nikolaos Lyras, Dimitris Zavitsanos, Saif Anwar, Obada Alia, Giannis Giannoulis, George Kanellos, Athanasios Panagopoulos, Hercules Avramopoulos

Proceedings Volume 12777, 127772N (2023) https://doi.org/10.1117/12.2690001

KEYWORDS: Satellites, Quantum key distribution, Satellite to ground quantum key distribution, Telescopes, Satellite communications, Astronomical imaging, Atmospheric optics, Visibility, Turbulence, Signal attenuation

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Proceedings Article | 15 March 2023 Presentation + Paper

Practical decoy-state sender implemented over analog RoF transmitters for secure 5G and beyond x-haul connections

Giannis Giannoulis, Argiris Ntanos, Aristeidis Stathis, Konstantina Kanta, Panagiotis Toumasis, Dimitris Zavitsanos, Nikolaos Lyras, Dimitrios Apostolopoulos, Hercules Avramopoulos

Proceedings Volume 12429, 1242919 (2023) https://doi.org/10.1117/12.2649707

KEYWORDS: Photons, Quantum signals, Quantum key distribution, Radio over Fiber, Single photon avalanche diodes, Quantum transmitters, Quantum sources

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Proceedings Article | 15 March 2023 Presentation + Paper

Photonic integrated circuits for 5G-and-beyond networks: enabling the mmWave band and beyond with InP-based photomixers in integrated transceivers

Efstathios Andrianopoulos, Milan Deumer, Tianwen Qian, Nikolaos Lyras, Simon Nellen, Evangelos Pikasis, Georgia Ntouni, Eleftherios Loghis, Elias Tsirbas, David de Felipe, Panos Groumas, Christos Tsokos, Maria Massaouti, Christos Kouloumentas, Dimitrios Kritharidis, Robert Kohlhaas, Norbert Keil, Martin Schell, Hercules Avramopoulos

Proceedings Volume 12429, 1242904 (2023) https://doi.org/10.1117/12.2648079

KEYWORDS: Terahertz radiation, Receivers, Principal component analysis, Photonic integrated circuits, Signal detection, Waveguides

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Proceedings Article | 15 March 2023 Poster + Paper

Entanglement-based QKD over LEO satellite-to-ground time-varying atmospheric channel

Argiris Ntanos, Nikolaos Lyras, Aristeidis Stathis, Dimitris Zavitsanos, Giannis Giannoulis, Athanasios Panagopoulos, Hercules Avramopoulos

Proceedings Volume 12413, 124131O (2023) https://doi.org/10.1117/12.2649702

KEYWORDS: Quantum key distribution, Satellites, Quantum communications, Atmospheric modeling, Turbulence, Telecommunications, Satellite communications, Optical communications, Observatories, Image segmentation

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Proceedings Article | 11 June 2021 Open Access

Low-complexity optimization algorithm for ground network design in optical satellite networks

Christos Efrem, Nikolaos Lyras, Charilaos Kourogiorgas, Athanasios Panagopoulos, Pantelis-Daniel Arapoglou

Proceedings Volume 11852, 118525Q (2021) https://doi.org/10.1117/12.2600010

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Proceedings Article | 12 July 2019 Open Access

Cloud free line of sight prediction modeling for low earth orbit optical satellite networks

Nikolaos Lyras, Charilaos Kourogiorgas, Athanasios Panagopoulos

Proceedings Volume 11180, 111801G (2019) https://doi.org/10.1117/12.2535971

KEYWORDS: Clouds, Satellites, Satellite communications, Telecommunications, Databases, Free space optics, Visibility, Optical networks, Stochastic processes, Liquids

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Proceedings Article | 12 July 2019 Open Access

On aperture averaging effects for central obscured telescopes: experimental validation with ARTEMIS experimental downlink measurements

Nikolaos Lyras, Charilaos Kourogiorgas, Athanasios Panagopoulos, Konstantinos Liolis, Zoran Sodnik

Proceedings Volume 11180, 111805Q (2019) https://doi.org/10.1117/12.2536125

KEYWORDS: Satellites, Telescopes, Satellite communications, Telecommunications, Scintillation, Receivers, Refractive index, Turbulence, Free space optics, Factor analysis

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