Integrated dual-laser photonic chip for high-purity carrier generation enabling ultrafast terahertz wireless communications

Shi Jia*, Mu Chieh Lo, Lu Zhang, Oskars Ozolins, Aleksejs Udalcovs, Deming Kong, Xiaodan Pang, Robinson Guzman, Xianbin Yu, Shilin Xiao, Sergei Popov, Jiajia Chen, Guillermo Carpintero, Toshio Morioka, Hao Hu, Leif K. Oxenløwe

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

22 Downloads (Pure)

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.

Original languageEnglish
Article number1388
JournalNature Communications
Volume13
Issue number1
Number of pages8
ISSN2041-1723
DOIs
Publication statusPublished - Dec 2022

Fingerprint

Dive into the research topics of 'Integrated dual-laser photonic chip for high-purity carrier generation enabling ultrafast terahertz wireless communications'. Together they form a unique fingerprint.

Cite this