Orbital angular momentum vector modes (de)multiplexer based on multimode micro-ring

Li, S. et al. (2018) Orbital angular momentum vector modes (de)multiplexer based on multimode micro-ring. Optics Express, 26(23), pp. 29895-29905. (doi: 10.1364/OE.26.029895) (PMID:30469872)

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Orbital angular momentum (OAM) multiplexing has emerged as an important method to increase the communication capacities in future optical information technologies. In this work, we demonstrate a silicon integrated OAM (de)multiplexer with a very simple structure. By simply tapping the evanescent wave of two different whispering gallery modes rotating inside a multimodal micro-ring resonator, four in-plane waveguide modes are converted to four free-space vector OAM beams with high mode purity. We further demonstrate chip-to-chip OAM multiplexing transmission using a pair of silicon devices, which shows low-level mode crosstalk and favorable link performance.

Item Type:Articles
Additional Information:Funding: National Natural Science Foundation of China (NSFC) (61490715, 11690031, 61622510, 61575224, 11690030); National Basic Research Program of China (2014CB340000).
Glasgow Author(s) Enlighten ID:Klitis, Dr Charalambos and Sorel, Professor Marc
Authors: Li, S., Nong, Z., Wu, X., Yu, W., He, M., Klitis, C., Zhu, Y., Gao, S., Liu, J., Li, Z., Liu, L., Sorel, M., Yu, S., and Cai, X.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN (Online):1094-4087
Published Online:31 October 2018
Copyright Holders:Copyright © 2018 Optical Society of America
First Published:First published in Optics Express 26(23): 29895-29905
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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