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Nonlinear control of coherent absorption and its optical signal processing applications

Nonlinear control of coherent absorption and its optical signal processing applications
Nonlinear control of coherent absorption and its optical signal processing applications
All-optical data processing continues to attract significant interest as a way to overcome the electronic signal processing bottleneck of fibre telecommunication networks. Nonlinear optical devices such as limiters and saturable absorbers rely on intensity-dependent attenuation of light. However, making such devices using intensity-dependent multi-photon dissipation processes is an issue as these make complete absorption and transmission impossible. Here we show that nonlinear phase retardation in an optical fibre can control the dissipation of coherent light waves interacting on a thin plasmonic absorber from total absorption to perfect transmission. The fibre’s instantaneous Kerr nonlinearity and the femtosecond coherent absorption timescale make this approach ultrafast. We report proof-of-principle demonstrations of all-optical intensity discrimination, power limiting, pulse restoration, pulse splitting and signal transfer between carrier wavelengths within a fibre circuit. Our results indicate that nonlinear control of coherent absorption can imitate and outperform saturable and multi-photon absorption in terms of bandwidth and contrast.
Metamaterial, Coherent absorption, Coherent transmission, Nonlinear optics, Nonlinear absorption, Saturable absorption, Metasurface
2378-0967
1-9
Xomalis, Angelos
4592aa40-b960-4c66-8816-5dd320228804
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Demirtzioglou, Iosif
5f46eb43-a2cd-4c87-94e0-f100e43f9431
Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Xomalis, Angelos
4592aa40-b960-4c66-8816-5dd320228804
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Demirtzioglou, Iosif
5f46eb43-a2cd-4c87-94e0-f100e43f9431
Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Xomalis, Angelos, Jung, Yongmin, Demirtzioglou, Iosif, Lacava, Cosimo, Plum, Eric, Richardson, David, Petropoulos, Periklis and Zheludev, Nikolai (2019) Nonlinear control of coherent absorption and its optical signal processing applications. APL Photonics, 4 (10), 1-9. (doi:10.1063/1.5123547).

Record type: Article

Abstract

All-optical data processing continues to attract significant interest as a way to overcome the electronic signal processing bottleneck of fibre telecommunication networks. Nonlinear optical devices such as limiters and saturable absorbers rely on intensity-dependent attenuation of light. However, making such devices using intensity-dependent multi-photon dissipation processes is an issue as these make complete absorption and transmission impossible. Here we show that nonlinear phase retardation in an optical fibre can control the dissipation of coherent light waves interacting on a thin plasmonic absorber from total absorption to perfect transmission. The fibre’s instantaneous Kerr nonlinearity and the femtosecond coherent absorption timescale make this approach ultrafast. We report proof-of-principle demonstrations of all-optical intensity discrimination, power limiting, pulse restoration, pulse splitting and signal transfer between carrier wavelengths within a fibre circuit. Our results indicate that nonlinear control of coherent absorption can imitate and outperform saturable and multi-photon absorption in terms of bandwidth and contrast.

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Nonlinear control of coherent absorption - accepted manuscript - Accepted Manuscript
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Accepted/In Press date: 7 October 2019
e-pub ahead of print date: 25 October 2019
Keywords: Metamaterial, Coherent absorption, Coherent transmission, Nonlinear optics, Nonlinear absorption, Saturable absorption, Metasurface

Identifiers

Local EPrints ID: 434871
URI: https://eprints.soton.ac.uk/id/eprint/434871
ISSN: 2378-0967
PURE UUID: 863b86b7-82c6-446c-9b83-f0c08a27881a
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 Cosimo Lacava: ORCID iD orcid.org/0000-0002-9950-8642
ORCID for Eric Plum: ORCID iD orcid.org/0000-0002-1552-1840
ORCID for David Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for Periklis Petropoulos: ORCID iD orcid.org/0000-0002-1576-8034
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 14 Oct 2019 16:30
Last modified: 05 Nov 2019 02:07

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