TY - GEN
T1 - Covert Optical Communication over Turbulent Terrestrial Free-Space Optical Link
AU - Nafria, Vijay
AU - Djordjevic, Ivan B.
N1 - Publisher Copyright: © 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Unlike traditional secure communication methods, denying unauthorized access to the content of the transmitted message, the covert communication prevents detection of the transmission attempt in the first place. In this invited paper, we review our recent activities on covert free-space optical (FSO) communication activities at the University of Arizona (UA). At UA we have established a 1.5 km long FSO communication link between Optical Sciences Meinel and ECE Department buildings. We use an EDFA as an ASE noise source for covert communication and perform the BPSK signalling over the FSO link at 10 Gb/s data rates. To deal with the atmospheric turbulence effects we use the adaptive optics. We have demonstrated successful covert operation in the strong turbulence regime.
AB - Unlike traditional secure communication methods, denying unauthorized access to the content of the transmitted message, the covert communication prevents detection of the transmission attempt in the first place. In this invited paper, we review our recent activities on covert free-space optical (FSO) communication activities at the University of Arizona (UA). At UA we have established a 1.5 km long FSO communication link between Optical Sciences Meinel and ECE Department buildings. We use an EDFA as an ASE noise source for covert communication and perform the BPSK signalling over the FSO link at 10 Gb/s data rates. To deal with the atmospheric turbulence effects we use the adaptive optics. We have demonstrated successful covert operation in the strong turbulence regime.
KW - adaptive optics (AO)
KW - BPSK
KW - covert communications
KW - free-space optical (FSO) communications
KW - wavefront sensor (WFS)
UR - http://www.scopus.com/inward/record.url?scp=85169477140&partnerID=8YFLogxK
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U2 - 10.1109/ICTON59386.2023.10207479
DO - 10.1109/ICTON59386.2023.10207479
M3 - Conference contribution
T3 - International Conference on Transparent Optical Networks
BT - 2023 23rd International Conference on Transparent Optical Networks, ICTON 2023
A2 - Jaworski, Marek
A2 - Marciniak, Marian
PB - IEEE Computer Society
T2 - 23rd International Conference on Transparent Optical Networks, ICTON 2023
Y2 - 2 July 2023 through 6 July 2023
ER -