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
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Plum, Eric
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Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Lacava, Cosimo
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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
22 April 2018
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 Convention & Exhibition Centre, 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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Published date: 22 April 2018
Venue - Dates:
SPIE Photonics Europe 2018, Strasbourg Convention & Exhibition Centre, Strasbourg, France, 2018-04-22 - 2018-04-26
Identifiers
Local EPrints ID: 417357
URI: http://eprints.soton.ac.uk/id/eprint/417357
PURE UUID: 881692c4-3639-4f19-9115-55346f239d2e
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Date deposited: 30 Jan 2018 17:30
Last modified: 09 Feb 2023 02:46
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Contributors
Author:
Angelos Xomalis
Author:
Iosif Demirtzioglou
Author:
Cosimo Lacava
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