Finite element method using port truncation by perfectly matched layer boundary conditions for optical waveguide discontinuity problems

Abstract:Using a finite-element, full-wave modeling approach, we present a flexible method of analyzing and simulating dielectric and plasmonic waveguide structures as well as their mode coupling. This method is applied to an integrated plasmonic circuit where a straight dielectric waveguide couples through a straight hybrid long-range plasmon waveguide to a uniformly bent hybrid one. The hybrid waveguide comprises a thin metal core embedded in a two-dimensional dielectric waveguide. The performance of such plasmonic circuits in terms of insertion losses is discussed.

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“…In order to minimize the remaining numerical reflections, a progressive absorption profile was used [32,[38][39][40]:…”

Section: Simulation Methodsmentioning

confidence: 99%

Simulation of complex plasmonic circuits including bends

Dellagiacoma¹,

Lasser²,

Martin³

et al. 2011

Opt. Express

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“…[28][29][30]. In our computational investigation, Maxwell's equations are solved in order to simulate wave propagation in a given waveguide design surrounded with non-reflecting boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Improved Bend Waveguide Design for Terahertz Transmission

Degirmenci

Surre

Philippe

et al. 2012

IEEE Trans. Terahertz Sci. Technol.

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“…waveguide discontinuity problems [30] but also for 3D waveguide discontinuity problems [31]. In 2D-FD-FEM, a triangular nodal element shown in Fig.…”

Section: Fig 14mentioning

confidence: 99%

Optical Waveguide Theory by the Finite Element Method

Koshiba

2014

IEICE Trans. Electron.

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SUMMARY Recent progress in research on the finite element method (FEM) for optical waveguide design and analysis is reviewed, focusing on the author's works. After briefly reviewing fundamentals of FEM such as a theoretical framework, a conventional nodal element, a newly developed edge element to eliminate nonphysical, spurious solutions, and a perfectly matched layer to avoid undesirable reflections from computational window edges, various FEM techniques for a guided-mode analysis, a beam propagation analysis, and a waveguide discontinuity analysis are described. Some design examples are introduced, including current research activities on multi-core fibers. key words: finite element method, beam propagation method, spurious solutions, fiber optics, nanophotonics

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Finite element method using port truncation by perfectly matched layer boundary conditions for optical waveguide discontinuity problems

Cited by 123 publications

References 16 publications

Simulation of complex plasmonic circuits including bends

Simulation of complex plasmonic circuits including bends

Improved Bend Waveguide Design for Terahertz Transmission

Optical Waveguide Theory by the Finite Element Method

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