Finite-element full-vectorial propagation analysis for three-dimensional z-varying optical waveguides

Montanari, E.; Selleri, Stefano; Vincetti, Luca; Zoboli, M.

doi:10.1109/50.664086

Cited by 47 publications

(17 citation statements)

References 24 publications

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“…To study the propagation through the coupler waveguide section, a more suitable approach such as beam propagation method (BPM) is required. Due to its numerical efficiency and versatility, some full vectorial BPM algorithms have been formulated based on the finite element method (Obayya et al 2000;Montanari et al 1998). In addition, many full vectorial BPM approaches based on the popular FDM have been reported (Huang and Xu 1993;Xiao and Sun 2006).…”

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confidence: 99%

Multiplexer–Demultiplexer based on nematic liquid crystal photonic crystal fiber coupler

2009

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A novel design of Multiplexer-Demultiplexer (MUX-DEMUX) based on index guiding soft glass nematic liquid crystal (NLC) based photonic crystal fiber coupler is proposed and analyzed. The simulation results are obtained using the full vectorial finite difference method as well as the full vectorial finite difference beam propagation method. The numerical results reveal that the proposed MUX-DEMUX of length 3.265 mm can provide low crosstalk better than −20 dB with great bandwidths of 40 and 24 nm around the wavelengths of 1.3 and 1.55 µm, respectively. In addition, the reported MUX-DEMUX has a tolerance of ±3% in its length which makes the design more robust to the perturbation introduced during the fabrication process.

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confidence: 99%

Multiplexer–Demultiplexer based on nematic liquid crystal photonic crystal fiber coupler

2009

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“…Due to its numerical efficiency and versatility, some full-vectorial BPM algorithms have been formulated, based on the finite-element method (FEM) [17][18][19][20][21]. Polstyanko et al [17] investigated the full vector finite-element BPM (FE-BPM) with electric filed formulation.…”

Section: Overview Of the Beam Propagation Methodsmentioning

confidence: 99%

Full‐Vectorial Beam Propagation Methods

Obayya

2010

Computational Photonics

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“…The difficulty becomes significant particularly when a waveguide with an asymmetrical index profile is treated. To resolve this problem, some attempts were made, but most of the previous works neglected the existence of the longitudinal field components [2]- [4], except for the full vectorial treatment done by Montanari et al [5]. In this paper, we newly formulate a semivectorial BPM partially retaining the effects of the longitudinal field component [6].…”

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confidence: 99%

A Modified Semivectorial BPM Retaining the Effects of the Longitudinal Field Component and Its Application to the Design of a Spot-Size Converter

Yamauchi

Nito

Nakano

2009

J. Lightwave Technol.

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Abstract-For the analysis of a -variant optical waveguide with high-index contrast by the beam-propagation method (BPM), the error often grows up during the propagation process. In this paper, the formulation of the BPM is revisited, taking into account the effects of the longitudinal field component. The improvement in accuracy is demonstrated through the analysis of a vertically tapered rib waveguide. The power expression based on the Poynting vector is also employed to improve the power conservation property. As an application, the present technique is applied to the design of a spot-size converter composed of a multicore structure. It is numerically demonstrated that the use of a curvilinearly tapered core leads to a conversion length of 570 m, which is 42% less than the length of a linearly tapered core, with a coupling efficiency of 97% being maintained at a wavelength of 1.55 m.Index Terms-Beam-propagation method (BPM), power conservation, spot-size converter (SSC).

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Finite-element full-vectorial propagation analysis for three-dimensional z-varying optical waveguides

Cited by 47 publications

References 24 publications

Multiplexer–Demultiplexer based on nematic liquid crystal photonic crystal fiber coupler

Multiplexer–Demultiplexer based on nematic liquid crystal photonic crystal fiber coupler

Full‐Vectorial Beam Propagation Methods

A Modified Semivectorial BPM Retaining the Effects of the Longitudinal Field Component and Its Application to the Design of a Spot-Size Converter

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