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An all-optical, non-volatile, bidirectional, phase-change meta-switch

An all-optical, non-volatile, bidirectional, phase-change meta-switch
An all-optical, non-volatile, bidirectional, phase-change meta-switch
Today's telecommunications networks are still largely optically opaque - consisting of electronic nodes connected by point-to-point optical links, relying on a series of optical-electrical conversions. Moving to all-optical switching will allow increased bit rates and low latency movement of data, providing greater routing agility, reducing energy requirements and simplifying network structures. This promise, and indeed the fact that the fundamental capacity limits of existing infrastructure are being reached, has sparked renewed interest in the extension of telecommunications bands to longer infrared wavelengths (where lower intrinsic losses in fibre media are possible) and intense efforts to develop techniques based on space-division multiplexing (in which many distinguishable data paths are established through the same fibre strand using either multiple cores or a multimode core) to substantially increase capacity. Future network architectures will require a new generation of highly integrated devices capable of functions such as all-optical switching and mode (de)multiplexing. We report here on the proof-of-principle demonstration of a non-volatile all-optical switch that combines the chalcogenide glass phase-change medium widely used in rewritable optical disks with nanostructured plasmonic metamaterials to yield a high-contrast, large area, reversible switching solution that may be optimised to function across a broad infrared band.
1521-4095
3050-3054
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Zhang, Jianfa
7ce15288-2016-4b9c-8244-7aed073363ca
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Hewak, Daniel W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Zhang, Jianfa
7ce15288-2016-4b9c-8244-7aed073363ca
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Hewak, Daniel W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Gholipour, Behrad, Zhang, Jianfa, MacDonald, Kevin F., Hewak, Daniel W. and Zheludev, Nikolay I. (2013) An all-optical, non-volatile, bidirectional, phase-change meta-switch. Advanced Materials, 25 (22), 3050-3054. (doi:10.1002/adma.201300588).

Record type: Article

Abstract

Today's telecommunications networks are still largely optically opaque - consisting of electronic nodes connected by point-to-point optical links, relying on a series of optical-electrical conversions. Moving to all-optical switching will allow increased bit rates and low latency movement of data, providing greater routing agility, reducing energy requirements and simplifying network structures. This promise, and indeed the fact that the fundamental capacity limits of existing infrastructure are being reached, has sparked renewed interest in the extension of telecommunications bands to longer infrared wavelengths (where lower intrinsic losses in fibre media are possible) and intense efforts to develop techniques based on space-division multiplexing (in which many distinguishable data paths are established through the same fibre strand using either multiple cores or a multimode core) to substantially increase capacity. Future network architectures will require a new generation of highly integrated devices capable of functions such as all-optical switching and mode (de)multiplexing. We report here on the proof-of-principle demonstration of a non-volatile all-optical switch that combines the chalcogenide glass phase-change medium widely used in rewritable optical disks with nanostructured plasmonic metamaterials to yield a high-contrast, large area, reversible switching solution that may be optimised to function across a broad infrared band.

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More information

Published date: 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 356446
URI: https://eprints.soton.ac.uk/id/eprint/356446
ISSN: 1521-4095
PURE UUID: 655db267-6fdc-4893-bf27-441640370bc7
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for Daniel W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 12 Sep 2013 16:56
Last modified: 03 Dec 2019 02:03

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Contributors

Author: Behrad Gholipour
Author: Jianfa Zhang
Author: Daniel W. Hewak ORCID iD

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