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- Title
Fibre-optic metadevice for all-optical signal modulation based on coherent absorption.
- Authors
Xomalis, Angelos; Demirtzioglou, Iosif; Plum, Eric; Yongmin Jung; Nalla, Venkatram; Lacava, Cosimo; MacDonald, Kevin F.; Petropoulos, Periklis; Richardson, David J.; Zheludev, Nikolay I.
- 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.
- Subjects
NONLINEAR optics; OPTICAL films; OPTICAL control; OPTICAL switches; STANDING waves; ABSORPTION
- Publication
Nature Communications, 2018, Vol 9, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-017-02434-y