Ultrafast graphene photonics for futuristic generation of datacoms

Elham Heidari; Zhizhen Ma; Hamed Dalir; Vahid Esfandyarpour; Volker J. Sorger; Ray T. Chen

doi:10.1117/12.2509155

19 March 2019 Ultrafast graphene photonics for futuristic generation of datacoms

Elham Heidari, Zhizhen Ma, Hamed Dalir, Vahid Esfandyarpour, Volker J. Sorger, Ray T. Chen

Proceedings Volume 10924, Optical Interconnects XIX; 1092419 (2019) https://doi.org/10.1117/12.2509155
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

In a three-level system, actively detuning coupling strength between the respective waveguide modes via electrically gating the graphene double-layer allows ultra-fast switching of light propagating through the outer waveguides. In adiabatic elimination regime, the amplitude of the middle waveguide oscillates much faster in comparison to the outer waveguides leading to a vanishing field build up. As a result, the middle waveguide becomes a dark state and hence a low insertion-loss of 1 dB is obtained. Due to the direct dependency of applied voltage with respect to the absorption in graphene, sub-volt operation with modulation-depth of 5 dB is expected.

Citation Download Citation

Elham Heidari, Zhizhen Ma, Hamed Dalir, Vahid Esfandyarpour, Volker J. Sorger, and Ray T. Chen "Ultrafast graphene photonics for futuristic generation of datacoms", Proc. SPIE 10924, Optical Interconnects XIX, 1092419 (19 March 2019); https://doi.org/10.1117/12.2509155

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