Compact 2-D Full-Wave Order-Marching Time-Domain Method With a Memory-Redued Technique

Shao, Wei; Lai, Shaoyong; Huang, Ting-Zhu

doi:10.2528/pierl08111811

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…In this method, the divergence theorem is used to eliminate the longitudinal field components leading to a significant reduction in memory space requirements. This approach has been used to improve the efficiency of many other recent FDTD methods [14,15].…”

Section: Introductionmentioning

confidence: 99%

Efficient MT-Based Compact FDTD Algorithm for Longitudinally-Magnetized Ferrite-Loaded Waveguides

Benouatas¹,

Riabi²

2013

JEMAA

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In this work, a compact finite-difference time-domain (FDTD) algorithm with a memory-reduced technique is proposed for the dispersion analysis of rectangular waveguides either fully or partially loaded with longitudinally-magnetized ferrite. In this algorithm, the divergence theorem is used to eliminate the longitudinal components of the electric and magnetic flux densities. The mobius transform (MT) technique is applied for the first time to obtain the equations relating the magnetic field to the magnetic flux density in a ferrite medium. Some examples are presented to validate the obtained algorithm with numerical results: good agreement is obtained with a significant reduction in the memory space requirement compared to the conventional algorithm.

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Section: Introductionmentioning

confidence: 99%

Efficient MT-Based Compact FDTD Algorithm for Longitudinally-Magnetized Ferrite-Loaded Waveguides

Benouatas¹,

Riabi²

2013

JEMAA

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“…The first model [7], which is based on a 3D FDTD method [26][27][28][29][30][31][32], claimed the insertion loss and crosstalk were < 0.1 dB and < −25 dB, respectively, at λ = 1.51-1.57 µm for an elliptical region with respective short and long axes of 1.5 µm and 7.2 µm. However, the second model [10] for an elliptical region with short and long axes of 2.5 µm and 6.0 µm, at λ = 1.55 µm demonstrated a transmission of 32%.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Perpendicular Crossing Dielectric Waveguides With Various Typical Index Contrasts and Intersection Profiles

Chang¹,

Wu²

2010

PIER

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Abstract-We present a rigorous 2D numerical study of the transmission, reflection and crosstalk coefficients of the perpendicular, identical dielectric crossing waveguide with various core-cladding index contrasts for both TE and TM polarizations. Our method is based on a hybrid frequency-domain finite-difference (FD-FD) technique computed with the cross-symmetry model. By varying the intersection profile, such as the circular, filleted, tapered and elliptical shapes, we achieve, even for a large 3.5 to 1.5 index ratio, a low 0.25 dB insertion loss, a nontrivial reduction over the straight direct crossing case.

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“…For 2-D dielectric waveguide problems are divided into mutually independent TE and TM cases which can be solved as scalar wave problems [3,4]. For complex optical devices, full wave methods such as the finite-difference time-domain methods (FD-TD) [5][6][7] are often used. For very large adiabatic waveguide devices the beam propagation method (BPM) and its variations [8] are used for studying field evolutions and for mode profile determination.…”

Section: Introductionmentioning

confidence: 99%

Layer-Mode Transparent Boundary Condition for the Hybrid Fd-Fd Method

Chang¹,

Cheng²,

Lu³

2009

PIER

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Abstract-We combine the analytic eigen mode expansion method with the finite-difference, frequency-domain (FD-FD) method to study two-dimensional (2-D) optical waveguide devices for both TE and TM polarizations. For this we develop a layer-mode based transparent boundary condition (LM-TBC) to assist launching of an arbitrary incident wave field and to direct the reflected and the transmitted scattered wave fields back and forward to the analytical regions. LM-TBC is capable of transmitting all modes including guiding modes, cladding modes and even evanescent waves leaving the FD domain. Both TE and TM results are compared and verified with exact free space Green's function and a semi-analytical solution.

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Compact 2-D Full-Wave Order-Marching Time-Domain Method With a Memory-Redued Technique

Cited by 3 publications

References 20 publications

Efficient MT-Based Compact FDTD Algorithm for Longitudinally-Magnetized Ferrite-Loaded Waveguides

Efficient MT-Based Compact FDTD Algorithm for Longitudinally-Magnetized Ferrite-Loaded Waveguides

Analysis of Perpendicular Crossing Dielectric Waveguides With Various Typical Index Contrasts and Intersection Profiles

Layer-Mode Transparent Boundary Condition for the Hybrid Fd-Fd Method

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