Smith, J F; Beresna, M; Fatadin, I; Talataisong, W; Phanchat, N; Ferguson, R; Naftaly, M; Brambilla, G (2025) 60-Gbit/s THz Communication Hybrid Propagation Through Hollow-Core Fiber and Over the Air. IEEE Transactions on Terahertz Science and Technology, 15 (6). pp. 1033-1040. ISSN 2156-342X

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Abstract

Terahertz (THz) frequencies have become a promising candidate for 6G communications technology due to the large continuous bandwidths available allowing for a large increase in peak data rate, compared to frequencies currently utilised in 5G. As THz Over-The-Air (OTA) signals are blocked by environmental obstacles such as building walls, short lengths (<5 m) of fibre capable of carrying THz data signals would allow for through-the-wall high-speed communication. In this work, a demonstration of data transmission through a 17 cm bent TOPAS hollow-core anti-resonant fibre is presented. A maximum data rate of 60 Gbit/s, using a QAM 64 modulation format is achieved with a Bit Error Ratio (BER) of 2.4x10-2 which is below the SD-FEC threshold of 2.7x10-2. This was achieved by transmitting the signal first through the THz fibre and then OTA over a ~1.7 m Non-Line-Of-Sight (NLOS) beam path. To the best of our knowledge, this is the first published demonstration of a hybrid fibre-to-OTA beam path at 250 GHz.

Item Type:	Article
Subjects:	Electromagnetics > Terahertz
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/TTHZ.2025.3610193
Last Modified:	14 Oct 2026 13:54
URI:	https://eprintspublications.npl.co.uk/id/eprint/10560