Efficient Scalar Bidirectional Beam Propagation Analysis for Photonic Devices With Circular Symmetry

Abdelhak, Yasmine I.; Said, Afaf M. A.; Areed, Nihal F. F.; Obayya, S. S. A.

doi:10.1109/lpt.2020.3042899

Cited by 5 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The NI-BiBPM is a numerical technique that proves an excellent efficiency in solving systems with multiple discontinuities. The non-iterative algorithm has achieved accurate results in only one sweep analysis reducing the dimensionality of the problem and the time of calculations [38][39][40]. The NI-BiBPM represents such problems by transition and propagation operators.…”

Section: Numerical Modeling Approachmentioning

confidence: 99%

“…The transition operators link between the transmitted and reflected field components around each discontinuity i in the system. The propagation operators map between the peers of these components over the different discontinuities along the propagation direction, taking into account the effect of the medium in-between [38]. The formulas are summarized and represented in ( 8), (9), and (10).…”

Section: Numerical Modeling Approachmentioning

confidence: 99%

“…Secondly, the square root operator in the transition and propagation formulas has been calculated using blocked Schur (BS) algorithm [42]. BS has proved a reliable stability vs. the iterative techniques such as Taylor series expansion and Padé approximation [38]. The characteristic matrix is decomposed into an upper triangular matrix representing all the eigenmodes in its diagonal entries as shown in (13),…”

Section: Numerical Modeling Approachmentioning

confidence: 99%

See 2 more Smart Citations

Radio Optical Network Simulation Tool (RONST)

Abdelhak¹,

Kamel²,

Hafez³

et al. 2022

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

This paper presents a radio optical network simulation tool (RONST) for modeling optical-wireless systems. For a typical optical and electrical chain environment, performance should be optimized concurrently before system implementation. As a result, simulating such systems turns out to be a multidisciplinary problem. The governing equations are incompatible with co-simulation in the traditional environments of existing software (SW) packages. The ultra-wideband (UWB) technology is an ideal candidate for providing high-speed short-range access for wireless services. The limited wireless reach of this technology is a significant limitation. A feasible solution to the problem of extending UWB signals is to transmit these signals to endusers via optical fibers. This concept implies the need for the establishment of a dependable environment for studying such systems. Therefore, the essential novelty of the proposed SW is that it provides designers, engineers, and researchers with a dependable simulation framework that can accurately and efficiently predict and/or optimize the behavior of such systems in a single optical-electronic simulation package. Furthermore, it is supported by a strong mathematical foundation with integrated algorithms to achieve broad flexibility and low computational cost. To validate the proposed tool, RONST was deployed on an ultra-wideband over fiber (UWBoF) system. The bit error rate (BER) has been calculated over a UWBoF system, and there is good agreement between the experimental and simulated results.

show abstract

Section: Numerical Modeling Approachmentioning

confidence: 99%

Section: Numerical Modeling Approachmentioning

confidence: 99%

Section: Numerical Modeling Approachmentioning

confidence: 99%

See 1 more Smart Citation

Radio Optical Network Simulation Tool (RONST)

Abdelhak¹,

Kamel²,

Hafez³

et al. 2022

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

show abstract

“…However, computational effort of matrix inversion is small because it is substantially 1D problem. In [13], [20], direct FEMs and field-based methods with transfer matrices are compared, and it is pointed out that the computational effort can be less than direct FEMs especially for periodic waveguides. Although there is room for discussion about accuracy, it is difficult to apply direct FEMs to a large scale waveguide as shown in the second numerical example due to computational cost.…”

Section: Numerical Examplesmentioning

confidence: 99%

“…Manuscript received Month XX, 2021; revised Month XX, 2021. reported, and its effectiveness is investigated comparing with the Axi-2DFEM and the FDTD methods [13]. In this literature, √ [Q] is treated accurately and efficiently using a blocked version Schur decomposition (B-Schur) [14] with a branchcut technique.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Beam Propagation Method Based on Axi-Symmetric Full-Vectorial Finite Element Method

Iguchi

Morimoto

Tsuji

2021

IEEE Photon. Technol. Lett.

View full text Add to dashboard Cite

We first present a bidirectional beam propagation method (BiBPM) based on axially symmetric full-vectorial finite element method (Axi-FVFEM). The Axi-FVFEM based BiBPM is a more versatile method than previous scalar BiBPM for axisymmetric structure. It has potential to offer more efficient analysis than widely used FEM or finite difference based techniques, especially for a large scale waveguide such as a long periodic structure. An air gap in an axi-symmetric waveguide and a fibre Bragg grating (FBG) are analyzed using the Axi-FVFEM based BiBPM for numerical validation, and we compare the numerical results with those of a 3D finite-difference time-domain (FDTD) method and a modal-based method.

show abstract