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Graphene Phase Modulator

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Sorianello, V 
Midrio, M 
Contestabile, G 
Asselberg, I 
Campenhout, J Van 

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 300μm, 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

Description

Keywords

cond-mat.mes-hall, cond-mat.mes-hall

Journal Title

Nature Photonics

Conference Name

Journal ISSN

1749-4885
1749-4893

Volume Title

12

Publisher

Springer Science and Business Media LLC
Sponsorship
Engineering and Physical Sciences Research Council (EP/L016087/1)
EPSRC (via University of Manchester) (R119256)
European Research Council (319277)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (696656)
Engineering and Physical Sciences Research Council (EP/K01711X/1)
Engineering and Physical Sciences Research Council (EP/K017144/1)
Engineering and Physical Sciences Research Council (EP/G030480/1)
Engineering and Physical Sciences Research Council (EP/G042357/1)
Engineering and Physical Sciences Research Council (EP/M507799/1)