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Graphene-integrated waveguides (GIWGs) have shown immense potential for applications in next-generation datacom technology due to graphene’s compactness and its functional complementarity with traditional optical waveguides. However, the fabrication techniques of GIWGs lack scalability for commercial applications. Here we discuss the recent developments of GIWGs in two-dimensional optoelectronics by focusing on their properties, wave–matter interaction mechanisms, and fabrication techniques. We highlight representative advances on the advantages and potential applications of GIWGs in telecom networks. Finally, we outline major challenges and development trends to bridge the gap between proof-of-concept demonstrations and practical applications.

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Publication history

Received: 20 December 2021
Revised: 05 May 2022
Accepted: 13 May 2022
Published: 14 June 2022

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© Tsinghua University Press 2022

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Acknowledgements

This project was supported by the National Natural Science Foundation of China (No. U1904193), the Special Program for Basic Research in University of Henan Province, China (No. 20zx010), the Training Plan of Young Backbone Teachers in Colleges and Universities of Henan Province, China (No. 2019GGJS025), the Science and Technology Development Project of Henan Province, China (No. 212102210454), the Program for Innovative Research Team in Science and Technology in the University of Henan Province (No. 20IRTSTHN012), the Zhongyuan Thousand Talents Program of Henan Province, and the National Young Top-Notch Talents of Ten-Thousand Talents Program.

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Email: nanores@tup.tsinghua.edu.cn

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