Double-clad Single-material Fibers for High-speed Data Links

Terahertz band is identified as the frequency band for the next generation of high-speed data links. The increase in data rates has resulted in a capacity bottleneck for wired high-speed data links. Traditional copper lines suffer from bandwidth limitations. Here, we propose a suspended rectangular-core terahertz fiber as an alternative for short- to medium-range interconnect between the chips. The proposed designs successfully achieve attenuation of less than 1 dB/m and group delay variation of less than 0.035 ns per unit length. This single material air-clad fibers has the potential to replace the copper interconnects and will pave the path for the integration of terahertz fiber in the next generation communication systems.