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arXiv · 1511.02791

30 GHz optoelectronic mixing in CVD graphene

A. Montanaro·S. Mzali·J. -P. Mazellier·O. Bezencenet·C. Larat·S. Molin·P. Legagneux·D. Dolfi·B. Dlubak·P. Seneor·M. -B. Martin·S. Hofmann·J. Robertson·A. Centano·A. Zurutuza
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Abstract

We report an optoelectronic mixer based on chemical vapour-deposited graphene. Our device consists in a coplanar waveguide that integrates a graphene channel, passivated with an atomic layer-deposited Al2O3 film. With this new structure, 30 GHz optoelectronic mixing in commercially-available graphene is demonstrated for the first time. In particular, using a 30 GHz intensity-modulated optical signal and a 29.9 GHz electrical signal, we show frequency downconversion to 100 MHz. These results open promising perspectives in the domain of optoelectronics for radar and radio-communication systems.

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A. Montanaro, S. Mzali, J. -P. Mazellier, O. Bezencenet, C. Larat, S. Molin, P. Legagneux, D. Dolfi, B. Dlubak, P. Seneor, M. -B. Martin, S. Hofmann, J. Robertson, A. Centano, A. Zurutuza. 2015-11-09. 30 GHz optoelectronic mixing in CVD graphene. https://arxiv.org/abs/1511.02791

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