Terahertz wireless communication at 560-GHz band using Kerr micro-resonator soliton comb

TL;DR

This paper demonstrates a 560-GHz band wireless communication system using a photonic THz emitter based on a soliton microcomb, achieving 2 Gbit/s data transfer suitable for next-generation 6G networks.

Contribution

It introduces a novel photonic THz emitter using a Kerr micro-resonator soliton comb for high-frequency wireless communication.

Findings

Achieved 2 Gbit/s data transfer rate.

Demonstrated operation at 560 GHz band.

Satisfies forward error correction limits.

Abstract

Terahertz (THz) waves have attracted attention as carrier waves for next-generation wireless communications (6G). Electronic THz emitters are widely used in current mobile communications; however, they may face technical limitations in 6G with upper-frequency limits. We demonstrate wireless communication in a 560-GHz band by using a photonic THz emitter based on photomixing of a 560-GHz-spacing soliton microcomb in a uni-travelling carrier photodiode together with a THz receiver of Schottky barrier diode. The on-off keying data transfer with 2-Gbit/s achieves a Q-factor of 3.4, thus, satisfying the limit of forward error correction.