Physics

Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication

A. Kumar, M. Gupta, et al.

This groundbreaking research showcases innovative phototunable, on-chip topological terahertz devices aimed at revolutionizing 6G communications. With a record 160 Gbit/s communication link and successful uncompressed HD video streaming, the work by Abhishek Kumar, Manoj Gupta, Prakash Pitchappa, Nan Wang, Pascal Szriftgiser, Guillaume Ducournau, and Ranjan Singh demonstrates the future of optically controllable communication technology.

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Abstract

This paper demonstrates a new class of phototunable, on-chip topological terahertz devices for 6G communications, consisting of a 160 Gbit/s communication link and a silicon Valley Photonic Crystal-based demultiplexer. The devices overcome limitations of existing terahertz on-chip communication devices by utilizing topological protection and a high-quality cavity for optically controllable demultiplexing without crosstalk. The researchers successfully demultiplexed 40 Gbit/s signals and streamed uncompressed HD video (1.5 Gbit/s), highlighting the potential of phototunable silicon topological photonics for future 6G and 7G communication.

Publisher

Nature Communications

Published On

Sep 15, 2022

Authors

Abhishek Kumar, Manoj Gupta, Prakash Pitchappa, Nan Wang, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh

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