Optimization of a Tunable Photonic Crystal Filter for Coarse Wavelength Division Multiplexing

Brik, Fatima; Labbani, Amel

doi:10.21272/jnep.12(6).06035

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…FDTD is based on the Yee algorithm [8], which solves both the magnetic and electric fields in time and space. Since it does not use a wave equation, it does not study these two fields separately [5,9,10,13]. Maxwell's equations [2]:…”

Section: Fdtd Methodsmentioning

confidence: 99%

Evaluation of the Iron State in Humid Zones Using GPR with 1.6 GHz Bowtie Antenna

Rihab¹,

Es-saleh²,

Lakrit³

et al. 2022

J. Nano- Electron. Phys.

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This report offers a study of iron status in moist zones using a 1.6 GHz Ground Penetrating Radar (GPR). The latter is a geophysical prospecting tool that analyzes the propagation, refraction, and reflection of high-frequency electromagnetic (EM) waves (from 300 MHz to 2.3 GHz). To replicate GPR signals, we used the GPRMAX program, which allowed us to model the soil's electrical and magnetic properties as well as the GPR itself. Several models were created to replicate various geological situations. The simulation began with a rectangular block as the starting model. The first and second models are basic profiles that illustrate the propagation of an EM wave. The third model is used to investigate the propagation of EM waves (reflected waves) in dry and wet concrete in order to demonstrate the influence of moisture on EM waves. To simulate different properties of a dielectric medium, a set of models was built. We simulated several different physical media using a finite difference time domain (FDTD) approach, which is the method on which the scientific calculation code of the GPRMAX simulation program is based. When a radar signal propagates through an environment, the presence of hyperbolas indicates the presence of buried objects.

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Section: Fdtd Methodsmentioning

confidence: 99%

Evaluation of the Iron State in Humid Zones Using GPR with 1.6 GHz Bowtie Antenna

Rihab¹,

Es-saleh²,

Lakrit³

et al. 2022

J. Nano- Electron. Phys.

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show abstract

“…For the three ports, in the communication band from 1.5 to 1.6 µm, the transmittance of each channel is greater than 90%, and the download efficiency of each channel to different wavelengths is shown in Table 1. Compared with [10] (three-port transmission of 86.6%, 63.5%, 97.7%) and [13] (maximum transmission of 98%), the three-port transmission can be up to 92.29%, 98.18%, and 94.75%. It can also be observed from Figure 3 that there are no other peaks between each transmission spectrum, indicating that there is little crosstalk between the ports.…”

Section: Structural Design and Numerical Simulation Of The Multi-channel Filtermentioning

confidence: 95%

“…A structure was made by Moloudian G. et al of air holes in a dielectric background [12]. F. Brik proposed the design of a tunable add drop filter (ADF) based on photonic crystal [13].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Three-Wavelength Multi-Channel Photonic Crystal Filters of Different Sizes

Wei

Zhang

2022

Crystals

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Multi-wavelength and multi-channel photonic crystal filters are designed with different sizes considered by using a two-dimensional quadric lattice photonic crystal structure to solve the problems of a multi-channel filter with structure complexity, single-wavelength download, and channel interference. The designed filter consists of a waveguide, reflection wall, multimode microcavity, and output port. Each port can download three different wavelengths. In the communication band from 1.500 to 1.600 μm, the transmittance of each channel is greater than 90%, and the filtering efficiency is high. The size of the non-simplified filter is only 27 μm × 17 μm. On the premise of ensuring low loss transmittance (that is, the transmittance of each port is changed by no more than 10% at the wavelength from 1.5–1.6 μm), the size of the filter can reach 15 μm × 7 μm. This design will greatly reduce the overall structure size of the filter and is suitable for multiplexing and demultiplexing in WDM systems.

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“…With the continuous development of broadband communication systems and wavelength multiplexing technology, the creation of new optical fiber components and wavelength-selective devices has become increasingly significant [1][2][3]. The use of Bragg gratings solves some problems related to fiber optic communication systems [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis by Simulation of Bragg Gratings and Their Application as a Sensor

Brik¹,

Benmeddour²,

Khaldouna³

2022

J. Nano- Electron. Phys.

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In this research paper, the impact of an opto-geometric fiber Bragg grating (FBG) is theoretically studied through simulation using the Rsoft Photonics CAD software's Grating Mod module, which is based on the coupled mode theory. Furthermore, the FBG is an optical component that plays a growing role in instrumentation. Moreover, its structure is based on a modification of the refractive index of the fiber core. Besides, the influence of several parameters, such as grating period, its length, its index difference, was presented and examined. The simulation results obtained show that the Bragg wavelength of the network shifts and changes its value following a change in one of its parameters. This means that the sensitivity of the FBG is considerable. However, because of the insensitivity to electromagnetic disturbances and the small size, which is suitable for that of the arteries, the adjustment of the FBG reflection characteristics under the action of a quantity is used to create miniaturized and sensitive sensors which are useful in medicine.

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Optimization of a Tunable Photonic Crystal Filter for Coarse Wavelength Division Multiplexing

Cited by 4 publications

References 17 publications

Evaluation of the Iron State in Humid Zones Using GPR with 1.6 GHz Bowtie Antenna

Evaluation of the Iron State in Humid Zones Using GPR with 1.6 GHz Bowtie Antenna

Performance Analysis of Three-Wavelength Multi-Channel Photonic Crystal Filters of Different Sizes

Parametric Analysis by Simulation of Bragg Gratings and Their Application as a Sensor

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