Terahertz fibre transmission link using resonant tunnelling diodes integrated with photonic‐crystal waveguides

Abstract

The authors present an expanded porous polytetrafluoroethylene terahertz fibre transmission link using resonant tunnelling diodes integrated with photonic‐crystal waveguides as a transmitter and a receiver. The measured coupling efficiency between the terahertz fibre and the photonic‐crystal waveguide integrated with a silicon tapered coupler is ∼30% with a 3 dB bandwidth of 50 GHz at the 0.3 THz band. Error‐free 10 Gbit/s transmission and uncompressed 4 K high‐definition video transmission have been successfully demonstrated using 1 m‐long terahertz fibre.