Measurement of the spin-orbit coupling interaction in ring-core optical fibers

Johnson, S. D. , Ma, Z., Padgett, M. J. and Ramachandran, S. (2019) Measurement of the spin-orbit coupling interaction in ring-core optical fibers. OSA Continuum, 2(10), pp. 2975-2982. (doi: 10.1364/OSAC.2.002975)

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Ring-core optical fibers have been designed to carry orbital angular momentum modes. We demonstrate the imaging of these modes, individually identifying modes separated temporally by only 30 ps. A single-pixel camera operating in the short-wave infrared detection range is used to image the 1550 nm wavelength optical modes. With this technique, examination of these optical modes can be performed with significantly higher temporal resolution than is possible with conventional imaging systems, such that the imaging of modes separated by spin-orbit coupling is achieved and evaluated. Deconvolution is required to separate the instrument response from the optical mode signal, increasing the clarity and temporal resolution of the measurement system.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles and Johnson, Dr Steven
Authors: Johnson, S. D., Ma, Z., Padgett, M. J., and Ramachandran, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:OSA Continuum
Publisher:Optical Society of America
ISSN (Online):2578-7519
Copyright Holders:Journal © 2019
First Published:First published in OSA Continuum 2(10):2975-2982
Publisher Policy:Reproduced under a Creative Commons Licence

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
190841UK Quantum Technology Hub in Enhanced Quantum ImagingEP/M01326X/1