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Fibre-optic metadevice for all-optical signal modulation based on coherent absorption.

Abstract：

:Recently, coherent control of the optical response of thin films in standing waves has attracted considerable attention, ranging from applications in excitation-selective spectroscopy and nonlinear optics to all-optical image processing. Here, we show that integration of metamaterial and optical fibre technologies allows the use of coherently controlled absorption in a fully fiberized and packaged switching metadevice. With this metadevice, which controls light with light in a nanoscale plasmonic metamaterial film on an optical fibre tip, we provide proof-of-principle demonstrations of logical functions XOR, NOT and AND that are performed within a coherent fibre network at wavelengths between 1530 and 1565 nm. The metadevice has been tested at up to 40 gigabits per second and sub-milliwatt power levels. Since coherent absorption can operate at the single-photon level and with 100 THz bandwidth, we argue that the demonstrated all-optical switch concept has potential applications in coherent and quantum information networks.

journal_name

Nat Commun

journal_title

Nature communications

authors

Xomalis A,Demirtzioglou I,Plum E,Jung Y,Nalla V,Lacava C,MacDonald KF,Petropoulos P,Richardson DJ,Zheludev NI

doi

10.1038/s41467-017-02434-y

subject

Has Abstract

pub_date

2018-01-12 00:00:00

pages

182

issue

1

issn

2041-1723

pii

10.1038/s41467-017-02434-y

journal_volume

9

pub_type

杂志文章

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