title: Attenuation, dispersion and nonlinearity effects in graphene-based waveguides.
abstract: We simulated and analyzed in detail the behavior of ultrashort optical pulses, which are typically used in telecommunications, propagating through graphene-based nanoribbon waveguides. In this work, we showed the changes that occur in the Gaussian and hyperbolic secant input pulses due to the attenuation, high-order dispersive effects and nonlinear effects. We concluded that it is possible to control the shape of the output pulses with the value of the input signal power and the chemical potential of the graphene nanoribbon. We believe that the obtained results will be highly relevant since they can be applied to other nanophotonic devices, for example, filters, modulators, antennas, switches and other devices.
authors.affiliation: Laboratory of Telecommunications and Materials Science and Engineering, Fortaleza, Ceará, Brazil ; Department of Teleinformatics Engineering, DETI, Center of Technology, Federal University of Ceará, Fortaleza, Ceará, Brazil.
authors.forename: Almir Wirth
authors.initials: AW
authors.lastname: Lima
authors.affiliation: Laboratory of Telecommunications and Materials Science and Engineering, Fortaleza, Ceará, Brazil.
authors.forename: João Cesar Moura
authors.initials: JC
authors.lastname: Mota
authors.affiliation: Laboratory of Telecommunications and Materials Science and Engineering, Fortaleza, Ceará, Brazil ; Department of Teleinformatics Engineering, DETI, Center of Technology, Federal University of Ceará, Fortaleza, Ceará, Brazil.
authors.forename: Antonio Sergio Bezerra
authors.initials: AS
authors.lastname: Sombra
keywords: graphene; nanophotonics; waveguide