Title :

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

Author(s) :

Kumar, Abhishek [Auteur]
Nanyang Technological University [Singapour]
Gupta, Manoj [Auteur]
Nanyang Technological University [Singapour]
Division of Physics and Applied Physics [Nanyang Technological University] [SPMS-PAP-02-01]
Pitchappa, Prakash [Auteur]
Agency for science, technology and research [Singapore] [A*STAR]
Wang, Nan [Auteur]
Agency for science, technology and research [Singapore] [A*STAR]
Szriftgiser, Pascal [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Ducournau, Guillaume [Auteur]
Photonique THz - IEMN [PHOTONIQUE THZ - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Singh, Ranjan [Auteur correspondant]
Nanyang Technological University [Singapour]
Division of Physics and Applied Physics [Nanyang Technological University] [SPMS-PAP-02-01]

Journal title :

Nature Communications

Pages :

5404, 9 pages

Publisher :

Nature Publishing Group

Publication date :

2022-12

ISSN :

2041-1723

HAL domain(s) :

Physique [physics]
Sciences de l'ingénieur [physics]

English abstract : [en]

The revolutionary 5G cellular systems represent a breakthrough in the communication network design to provide a single platform for enabling enhanced broadband communications, virtual reality, autonomous driving, and the ...
Show more >The revolutionary 5G cellular systems represent a breakthrough in the communication network design to provide a single platform for enabling enhanced broadband communications, virtual reality, autonomous driving, and the internet of everything. However, the ongoing massive deployment of 5G networks has unveiled inherent limitations that have stimulated the demand for innovative technologies with a vision toward 6G communications. Terahertz (0.1-10 THz) technology has been identified as a critical enabler for 6G communications with the prospect of massive capacity and connectivity. Nonetheless, existing terahertz on-chip communication devices suffer from crosstalk, scattering losses, limited data speed, and insufficient tunability. Here, we demonstrate a new class of phototunable, on-chip topological terahertz devices consisting of a broadband single-channel 160 Gbit/s communication link and a silicon Valley Photonic Crystal based demultiplexer. The optically controllable demultiplexing of two different carriers modulated signals without crosstalk is enabled by the topological protection and a critically coupled high-quality ( Q ) cavity. As a proof of concept, we demultiplexed high spectral efficiency 40 Gbit/s signals and demonstrated real-time streaming of uncompressed high-definition (HD) video (1.5 Gbit/s) using the topological photonic chip. Phototunable silicon topological photonics will augment complementary metal oxide semiconductor (CMOS) compatible terahertz technologies, vital for accelerating the development of futuristic 6G and 7G communication era driving the real-time terabits per second wireless connectivity for network sensing, holographic communication, and cognitive internet of everything.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Comment :

The authors declare that all the data supporting the findings of thisstudy are openly available in NTU research data repository DR-NTU athttps://doi.org/10.21979/N9/5FK01V.

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL