Eszter Udvary Gerhatne is an associate professor of the Department of Networked Systems and Services, Faculty of Electrical Engineering and Informatics, BME. She is a member of the Mobile Communications and Quantum Technologies Laboratory.
Dr. Udvary's research interests are in the broad area of optical communications focusing on the physical layer of the networks. Her research activity includes Microwave Photonics (MWP), Radio over Fibre (RoF), Radio over Free Space Optic (RoFSO), optical access network, Visible Light Communication (VLC), and quantum communication.
She investigated the application of multifunctional semiconductor optical amplifiers in optical access networks, and she is deeply involved in optical approaches for future mobile systems. This competence is very useful in the study of photon-based quantum key distribution systems. In addition to fiber optic solutions, she has several indoor optical wireless communication results, which lead to the development of the free space quantum links. Recently she has been focusing on the efficiency improvement of quantum random number generators.
She has been the Hungarian leader of the H2020 FIWIN5G - FIber-Wireless Integrated Networks for 5th Generation delivery project, COST Actions (Newfocus, iMWP); and she involved in several Hungarian research projects (HunQuTech, EFOP, OTKA.)
Schranz, Ágoston; Udvary, Eszter; Matolcsy, Balázs: Efficiency improvement of a time-of-arrival quantum random number generator, OPTICAL ENGINEERING 60:3 Paper: 034112, 13 p. (2021)
Schranz, Ágoston; Udvary, Eszter: Mathematical analysis of a quantum random number generator based on the time difference between photon detections, OPTICAL ENGINEERING 59:4 Paper: 044104 (2020)
Hum, Nath Parajuli; Haymen, Shams; Luis, Guerrero Gonzalez; Eszter, Udvary; Cyril, Renaud; John, Mitchell: Experimental demonstration of multi-Gbps multi sub-bands FBMC transmission in mm-wave radio over a fiber system, OPTICS EXPRESS 26 : 6 pp. 7306-7312., 7 p. (2018)
Hassan, K Al-Musawi; Tamas, Cseh; Jan, Bohata; Wai, Pang Ng; Zabih, Ghassemlooy; Stanislav, Zvanovec; Eszter, Udvary; Petr, Pesek: Adaptation of Mode Filtering Technique in 4G-LTE Hybrid RoMMF-FSO for Last-mile Access Network, IEEE JOURNAL OF LIGHTWAVE TECHNOLOGY 35:17 pp. 3758-3764., 7 p. (2017)
Udvary, Eszter; Berceli, Tibor: Improvements in the Linearity of Semiconductor Optical Amplifiers as External Modulators, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 58:11 pp. 3161-3166., 6 p. (2010)