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Graphene–silicon phase modulators with gigahertz bandwidth

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 22 Dec 2017Embargo end date: 13 Oct 2022 Italy, United Kingdom English Publisher:Springer Science and Business Media LLCJournal:Nature Photonics, volume 12, pages 40-44 (issn: 1749-4885, eissn: 1749-4893,

Copyright policy )Funded by:UKRI | Graphene Flexible Electro..., UKRI | EPSRC Centre for Doctoral..., EC | GrapheneCore1 +1 projects

Authors: Sorianello, V; Midrio, M; Contestabile, G; Asselberghs, I; Van Campenhout, J; Huyghebaert, C; Goykhman, Ilya; +3 Authors

doi: 10.1038/s41566-017-0071-6 , 10.17863/cam.89503 , 10.17863/cam.34231 , 10.48550/arxiv.1704.01525 , 10.17863/cam.17564

arXiv: http://arxiv.org/abs/1704.01525

handle: 11390/1127134 , 11382/520920

Graphene–silicon phase modulators with gigahertz bandwidth

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Abstract

We demonstrate a 10Gb/s Graphene Phase Modulator (GPM) integrated in a Mach-Zehnder interferometer configuration. This is a compact device, with a phase-shifter length of only 300$\mu$m, and 35dB extinction ratio. The GPM has modulation efficiency of 0.28Vcm, one order of magnitude higher compared to state-of-the-art depletion p-n junction Si phase modulators. Our GPM operates with 2V peak-to-peak driving voltage in a push-pull configuration, and it has been tested in a binary transmission of a non-return-to-zero data stream over 50km single mode fibre. This device is the key building block for graphene-based integrated photonics, enabling compact and energy efficient hybrid Si-graphene modulators for telecom, datacom and other applications

Countries

Italy, United Kingdom

Related Organizations

Università degli studi di Salerno
Italy
University of Cambridge
United Kingdom
IMEC
Belgium
THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
United Kingdom
Imec
Belgium

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Keywords

Condensed Matter - Mesoscale and Nanoscale Physics, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), cond-mat.mes-hall, FOS: Physical sciences, MACH-ZEHNDER MODULATORS; OPTICAL MODULATOR; RAMAN-SPECTROSCOPY; HYBRID SYSTEMS; HIGH-SPEED; DEVICES; OPTIMIZATION; PHOTONICS

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	308
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 0.1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 1%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 0.1%