Integrated optical vortex beam receivers

Cicek, K. et al. (2016) Integrated optical vortex beam receivers. Optics Express, 24(25), pp. 28529-28539. (doi: 10.1364/OE.24.028529) (PMID:27958497)

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A simple and ultra-compact integrated optical vortex beam receiver device is presented. The device is based on the coupling between the optical vortex modes and whispering gallery modes in a micro-ring resonator via embedded angular gratings, which provides the selective reception of optical vortex modes with definitive total angular momentum (summation of spin and orbital angular momentum) through the phase matching condition in the coupling process. Experimental characterization confirms the correct detection of the total angular momentum carried by the vortex beams incident on the device. In addition, photonic spin-controlled unidirectional excitation of whispering-gallery modes in the ring receiver is also observed, and utilized to differentiate between left- and right-circular polarizations and therefore unambiguously identify the orbital angular momentum of incident light. Such characteristics provide an effective mode-selective receiver for the eigen-modes in orbital angular momentum fiber transmission where the circularly polarized OAM modes can be used as data communications channels in multiplexed communications or as photonic states in quantum information applications.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Sorel, Professor Marc and Zhang, Dr Ning and Meriggi, Miss Laura
Authors: Cicek, K., Hu, Z., Zhu, J., Meriggi, L., Li, S., Nong, Z., Gao, S., Zhang, N., Wang, X., Cai, X., Sorel, M., and Yu, S.
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:01 December 2016
First Published:First published in Optics Express 24(25): 28529-28539
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
671091ROAM - Revolutionising Optical Fibre Transmission and Networking Using the Orbital Angular Momentum of LightMarc SorelEuropean Commission (EC)645361ENG - ENGINEERING ELECTRONICS & NANO ENG