Nonlinear couplers based on plasmonic waveguides

José Ramón Salgueiro; Yuri S. Kivshar

doi:10.7149/OPA.45.2.163

Nonlinear couplers based on plasmonic waveguides

José Ramón Salgueiro^*, Yuri S. Kivshar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

In this work we study directional couplers made of waveguides with metallic claddings and nonlinear dielectric cores. The nonlinear modes are calculated describing the dependence of their shape with the increasing power. Using FDTD simulations we describe the switching properties, studying the power transfer between the waveguides and evaluating the effect of optical losses. We propose and analyse the use of tapered waveguides to compensate losses and improve the efficiency of the device.

Original language	English
Pages (from-to)	163-168
Number of pages	6
Journal	Optica Pura y Aplicada
Volume	45
Issue number	2
DOIs	https://doi.org/10.7149/OPA.45.2.163
Publication status	Published - 2012

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10.7149/OPA.45.2.163

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abstract = "In this work we study directional couplers made of waveguides with metallic claddings and nonlinear dielectric cores. The nonlinear modes are calculated describing the dependence of their shape with the increasing power. Using FDTD simulations we describe the switching properties, studying the power transfer between the waveguides and evaluating the effect of optical losses. We propose and analyse the use of tapered waveguides to compensate losses and improve the efficiency of the device.",

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AB - In this work we study directional couplers made of waveguides with metallic claddings and nonlinear dielectric cores. The nonlinear modes are calculated describing the dependence of their shape with the increasing power. Using FDTD simulations we describe the switching properties, studying the power transfer between the waveguides and evaluating the effect of optical losses. We propose and analyse the use of tapered waveguides to compensate losses and improve the efficiency of the device.

KW - Directional couplers

KW - Nonlinear guides

KW - Plasmonics

KW - Switching

KW - Tapers

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Nonlinear couplers based on plasmonic waveguides

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