Semiconductor Physics, Quantum Electronics & Optoelectronics, 29 (1), P. 091–096 (2026).
DOI: https://doi.org/10.15407/spqeo29.01.091
Designing optical system with off-axis parabolic mirrors for THz communication setup
A.Yu. Shekera*, A.V. Shevchik-Shekera**, O.G. Golenkov, V.V. Zabudsky, I.O. Lysiuk, F.F. Sizov, Z.F. Tsybrii
V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 03028 Kyiv, Ukraine
*Corresponding author e-mail: andrii.shekera@isp.kiev.ua
**Co-corresponding author e-mail: shevchik-shekera@isp.kiev.ua
Abstract. The terahertz (THz) range of the electromagnetic spectrum is considered for data transmission, including future 6G networks. This work focuses on modeling and analyzing a THz optical system using off-axis parabolic mirrors (OAPMs) for collimation and focusing of radiation from a 140 GHz IMPATT diode. Experimental directivity patterns were approximated with a Gaussian distribution and implemented in simulation. The system achieved about 85% power transfer efficiency in modeling and 40% experimentally. The use of OAPMs significantly improves beam collimation, increases peak intensity, and extends transmission range without increasing source power, though additional tracking systems are required.
Keywords: terahertz (THz) range, wireless data transfer, 6G network, off-axis parabolic mirrors.
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