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Proceedings Paper

Fibre-optic metadevice for signal processing with 1 THz bandwidth (Conference Presentation)
Author(s): Angelos Xomalis; Iosif Demirtzioglou; Eric Plum; Yongmin Yung; Cosimo Lacava; Kevin F. MacDonald; Periklis Petropoulos; David J. Richardson; Nikolay I. Zheludev

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.

Paper Details

Date Published: 23 May 2018
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Proc. SPIE 10671, Metamaterials XI, 1067121 (23 May 2018); doi: 10.1117/12.2314616
Show Author Affiliations
Angelos Xomalis, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Ctr. for Photonic Metamaterials, Univ. of Southampton (United Kingdom)
Iosif Demirtzioglou, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Eric Plum, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Ctr. for Photonic Metamaterials, Univ. of Southampton (United Kingdom)
Yongmin Yung, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Cosimo Lacava, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Kevin F. MacDonald, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Ctr. for Photonic Metamaterials, Univ. of Southampton (United Kingdom)
Periklis Petropoulos, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
David J. Richardson, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Nikolay I. Zheludev, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
Ctr. for Photonic Metamaterials, Univ. of Southampton (United Kingdom)
Ctr. for Disruptive Photonic Technologies, Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 10671:
Metamaterials XI
Allan D. Boardman; Anatoly V. Zayats; Kevin F. MacDonald, Editor(s)

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