170-260 GHz Sub-THz Optical Heterodyne Analog Radio-over-Fiber Link for 6G Wireless System
Amol Delmade, Alison Kearney, Simon Nellen, Robert B. Kohlhaas, Colm, Browning, Martin Schell, Frank Smyth, Liam Barry
TL;DR
This paper demonstrates a digital impairment compensation method enabling the generation of 170-260 GHz sub-THz OFDM signals over a 10km analog radio-over-fiber link, addressing laser phase noise issues for 6G wireless systems.
Contribution
It introduces a digital impairment compensation technique to improve sub-THz signal generation over fiber links for 6G applications.
Findings
Successful generation of 170-260 GHz signals over 10km fiber
Effective mitigation of laser phase noise effects
Enhanced performance of sub-THz optical heterodyne links
Abstract
The frequency and phase fluctuations of free-running lasers limit the performance of optical heterodyne sub-THz systems - especially for low subcarrier spacing OFDM signals. Digital impairment compensation is implemented here for the successful generation of 170 - 260 GHz sub-THz OFDM signals over 10km analog-RoF link.
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Taxonomy
TopicsAdvanced Photonic Communication Systems · Photonic and Optical Devices · Optical Network Technologies