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Fibre-optic metadevice for signal processing with 1 THz bandwidth

Fibre-optic metadevice for signal processing with 1 THz bandwidth
Fibre-optic metadevice for signal processing with 1 THz bandwidth
Energy-efficient ultrafast all-optical signal processing may contribute to solving growing bandwidth and energy challenges in optical telecommunications. However, conventional solutions for all-optical data processing rely on nonlinear optical materials with inherent minimum power requirements and trade-offs between bandwidth and speed. In contrast, the coherent interaction of light-with-light in an absorber of nanoscale thickness can facilitate high-contrast modulation of one optical signal with another, ultimately with few-femtosecond response times and at arbitrarily low (even single photon) intensities.
We report here on the first demonstration of a fiberized metamaterial device for all-optical signal processing based upon coherent modulation of absorption. The integrated metadevice is based on a plasmonic metamaterial of nanoscale thickness fabricated on the core area of a single-mode optical fibre, and designed to operate over the 1530 – 1565 nm telecoms wavelength range. We demonstrate signal processing operations analogous to logical NOT, XOR and AND functions at effective rates from tens of kbit/s up to 40 Gbit/s with energy consumption as low as 2.5 fJ/bit, as well as selective absorption and transmission of picosecond pulses and the generation of 1 ps ‘dark pulses’. We anticipate that such metadevices, with THz bandwidth, may provide solutions for quantum information networks as well as orders-of-magnitude improvements in speed and energy consumption over existing nonlinear approaches to all-optical signal processing in coherent information networks.
Xomalis, Angelos
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Demirtzioglou, Iosif
5f46eb43-a2cd-4c87-94e0-f100e43f9431
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Xomalis, Angelos
4592aa40-b960-4c66-8816-5dd320228804
Demirtzioglou, Iosif
5f46eb43-a2cd-4c87-94e0-f100e43f9431
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Xomalis, Angelos, Demirtzioglou, Iosif, Plum, Eric, Jung, Yongmin, Lacava, Cosimo, MacDonald, Kevin F., Petropoulos, Periklis, Richardson, David and Zheludev, Nikolai (2018) Fibre-optic metadevice for signal processing with 1 THz bandwidth. SPIE Photonics Europe 2018, Strasbourg, France. 22 - 26 Apr 2018.

Record type: Conference or Workshop Item (Paper)

Abstract

Energy-efficient ultrafast all-optical signal processing may contribute to solving growing bandwidth and energy challenges in optical telecommunications. However, conventional solutions for all-optical data processing rely on nonlinear optical materials with inherent minimum power requirements and trade-offs between bandwidth and speed. In contrast, the coherent interaction of light-with-light in an absorber of nanoscale thickness can facilitate high-contrast modulation of one optical signal with another, ultimately with few-femtosecond response times and at arbitrarily low (even single photon) intensities.
We report here on the first demonstration of a fiberized metamaterial device for all-optical signal processing based upon coherent modulation of absorption. The integrated metadevice is based on a plasmonic metamaterial of nanoscale thickness fabricated on the core area of a single-mode optical fibre, and designed to operate over the 1530 – 1565 nm telecoms wavelength range. We demonstrate signal processing operations analogous to logical NOT, XOR and AND functions at effective rates from tens of kbit/s up to 40 Gbit/s with energy consumption as low as 2.5 fJ/bit, as well as selective absorption and transmission of picosecond pulses and the generation of 1 ps ‘dark pulses’. We anticipate that such metadevices, with THz bandwidth, may provide solutions for quantum information networks as well as orders-of-magnitude improvements in speed and energy consumption over existing nonlinear approaches to all-optical signal processing in coherent information networks.

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More information

Published date: 22 April 2018
Venue - Dates: SPIE Photonics Europe 2018, Strasbourg, France, 2018-04-22 - 2018-04-26

Identifiers

Local EPrints ID: 417357
URI: https://eprints.soton.ac.uk/id/eprint/417357
PURE UUID: 881692c4-3639-4f19-9115-55346f239d2e
ORCID for Angelos Xomalis: ORCID iD orcid.org/0000-0001-8406-9571
ORCID for Iosif Demirtzioglou: ORCID iD orcid.org/0000-0003-3048-1768
ORCID for Eric Plum: ORCID iD orcid.org/0000-0002-1552-1840
ORCID for Cosimo Lacava: ORCID iD orcid.org/0000-0002-9950-8642
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for Periklis Petropoulos: ORCID iD orcid.org/0000-0002-1576-8034
ORCID for David Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 30 Jan 2018 17:30
Last modified: 10 Oct 2019 00:27

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Contributors

Author: Angelos Xomalis ORCID iD
Author: Eric Plum ORCID iD
Author: Yongmin Jung
Author: Cosimo Lacava ORCID iD

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