Terahertz fiber link using dielectric silicon waveguide interface

Nascent data-intensive emerging technologies are mandating low-loss, short-range interconnects, whereas existing interconnects suffer from high losses and low aggregate data throughput owing to a lack of efficient interfaces. Here, we report an efficient 22-Gbit/s terahertz fiber link using a tapered silicon interface that serves as a coupler between the dielectric waveguide and hollow core fiber. We investigated the fundamental optical properties of hollow-core fibers by considering fibers with 0.7-mm and 1-mm core diameters. We achieved a coupling efficiency of -60% with a 3-dB bandwidth of 150 GHz in the 0.3-THz band over a 10 cm fiber.

Automated summary

Existing interconnects suffer from high losses and low data throughput, while emerging data-intensive technologies require low-loss, short-range interconnects. In this study, we developed an efficient 22-Gbit/s terahertz fiber link using a tapered silicon interface as a coupler between the dielectric waveguide and hollow core fiber. By investigating the optical properties of hollow-core fibers with core diameters of 0.7 mm and 1 mm, we achieved a coupling efficiency of -60% and a 3-dB bandwidth of 150 GHz in the 0.3-THz band over a 10 cm fiber.