Jia, Shi;
Lo, Mu-Chieh;
Zhang, Lu;
Ozolins, Oskars;
Udalcovs, Aleksejs;
Kong, Deming;
Pang, Xiaodan;
... Oxenløwe, Leif K; + view all
(2022)
Integrated dual-laser photonic chip for high-purity carrier generation enabling ultrafast terahertz wireless communications.
Nature Communications
, 13
, Article 1388. 10.1038/s41467-022-29049-2.
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Abstract
Photonic generation of Terahertz (THz) carriers displays high potential for THz communications with a large tunable range and high modulation bandwidth. While many photonics-based THz generations have recently been demonstrated with discrete bulky components, their practical applications are significantly hindered by the large footprint and high energy consumption. Herein, we present an injection-locked heterodyne source based on generic foundry-fabricated photonic integrated circuits (PIC) attached to a uni-traveling carrier photodiode generating high-purity THz carriers. The generated THz carrier is tunable within the range of 0-1.4 THz, determined by the wavelength spacing between the two monolithically integrated distributed feedback (DFB) lasers. This scheme generates and transmits a 131 Gbits-1 net rate signal over a 10.7-m distance with -24 dBm emitted power at 0.4 THz. This monolithic dual-DFB PIC-based THz generation approach is a significant step towards fully integrated, cost-effective, and energy-efficient THz transmitters.
| Type: | Article |
|---|---|
| Title: | Integrated dual-laser photonic chip for high-purity carrier generation enabling ultrafast terahertz wireless communications |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41467-022-29049-2 |
| Publisher version: | https://doi.org/10.1038/s41467-022-29049-2 |
| Language: | English |
| Additional information: | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10145621 |
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