Related Data for: Valley-conserved topological integrated antenna for 100 Gbps THz wireless

Topological phase has transformed the wave transport in condensed matter, photonic and acoustic systems, enabling integrated topological photonic circuits that allow the sharp bending of light on a chip. However, the momentum mismatch caused by material impedance inconsistency during inter-medium topological mode transitions has remained challenging. Here, we demonstrate topological wireless communication link comprising valley momentum conserved devices integrated with a graded refractive index buffer. Our proposed system facilitates inter-chip communication over-the-air with a data rate of 100 Gbps achieved through perfect valley momentum-matched on-chip topological components. The valley-conserved silicon antenna exhibits a gain of 12.2 dBi and constant group delay over a broad bandwidth of 30 GHz while also allowing active beam steering with an angular range of 36° and minimal loss to the antenna gain. The topological valley-conserved devices set a milestone for hybrid electronic-photonic-based topological wireless communications, paving the way for terabit per second backhaul communication with high throughput and the inter-medium transport of waves. These innovative and CMOS compatible terahertz silicon topological devices have the potential for revolutionizing future wireless communication, opening new avenues for advanced electronic-photonic-based topological technologies.