Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication
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...
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Science::Physics::Optics and light Bandwidth Electromagnetic Radiation Kumar, Abhishek Gupta, Manoj Pitchappa, Prakash Wang, Nan Szriftgiser, Pascal Ducournau, Guillaume Singh, Ranjan Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication |
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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. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Kumar, Abhishek Gupta, Manoj Pitchappa, Prakash Wang, Nan Szriftgiser, Pascal Ducournau, Guillaume Singh, Ranjan |
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Article |
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Kumar, Abhishek Gupta, Manoj Pitchappa, Prakash Wang, Nan Szriftgiser, Pascal Ducournau, Guillaume Singh, Ranjan |
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Kumar, Abhishek |
title |
Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication |
title_short |
Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication |
title_full |
Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication |
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Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication |
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Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication |
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phototunable chip-scale topological photonics: 160 gbps waveguide and demultiplexer for thz 6g communication |
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2023 |
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https://hdl.handle.net/10356/165326 https://doi.org/10.21979/N9/5FK01V |
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sg-ntu-dr.10356-1653262023-03-27T15:34:48Z Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication Kumar, Abhishek Gupta, Manoj Pitchappa, Prakash Wang, Nan Szriftgiser, Pascal Ducournau, Guillaume Singh, Ranjan School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) The Photonics Institute Science::Physics::Optics and light Bandwidth Electromagnetic Radiation 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. National Research Foundation (NRF) Published version A.K., M.G., P.P., N.W., and R.S. acknowledge the research funding support from National Research Foundation (NRF) Singapore, Grant No: NRF-CRP23-2019-0005. We thank the IEMN characterization service (CHOP platform) for the access to various instruments and infrastructure support used during the VNA characterization steps of the different samples. Signal generation and data analysis received support from CPER Photonics for Society and DYDICO research cluster of the I-site ULNE. The 300 GHz datacom setup used for high level modulation formats and associated BER measurements was also partially funded by ANR TERASONIC and SPATIOTERA grants (ANR programs under CE24, 2017 and 2019) as well as ITN TERAOPTICS Marie-Curie Action (H2020- MSCA-ITN-2020, Grant 956857). Last, ASK modulation generations and analysis was carried using a dedicated THz communication setup developed within TERIL-WAVES project from I-site ULNE and Metropole Européenne de Lille (MEL). 2023-03-27T05:15:58Z 2023-03-27T05:15:58Z 2022 Journal Article Kumar, A., Gupta, M., Pitchappa, P., Wang, N., Szriftgiser, P., Ducournau, G. & Singh, R. (2022). Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication. Nature Communications, 13(1), 5404-. https://dx.doi.org/10.1038/s41467-022-32909-6 2041-1723 https://hdl.handle.net/10356/165326 10.1038/s41467-022-32909-6 36109511 2-s2.0-85137893437 1 13 5404 en NRF-CRP23-2019-0005 H2020- MSCA-ITN-2020 (Grant 956857) Nature Communications https://doi.org/10.21979/N9/5FK01V © 2022 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/. application/pdf |