The design and analysis of a dual-diamond-ring PCF-based sensor

Paul, Bikash Kumar; Ahmed, Kawsar; El‐Khozondar, Hala J.; Pobre, Romeric; Peña, Joelle Sophia G.; Merciales, Melanie C.; Zainuddin, Nur Aina’a Mardhiah; Zakaria, Rozalina; Dhasarathan, Vigneswaran

doi:10.1007/s10825-020-01509-2

Cited by 13 publications

(3 citation statements)

References 19 publications

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“…Compared with traditional fibers, the birefringence of PCF can reach more than 10 −3 , while traditional polarization-maintaining fiber can only reach the order of magnitude 10 −4 [1], which means the high birefringence PCF is at least one order of magnitude higher than the traditional fiber. Due to PCF is insensitive to temperature changes and has strong stability, it can maintain single-mode transmission [2], ultra-flat dispersion [3][4][5][6], high birefringence [7], and unique nonlinear effect in a wide wavelength range [8], which is attracting more and more extensive research all over the world.…”

Section: Introductionmentioning

confidence: 99%

A highly birefringent photonic crystal fiber based on a central trielliptic structure: FEM analysis

Liu,

Wen,

Zhou

et al. 2023

Phys. Scr.

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In this study, a highly birefringent photonic crystal fiber (PCF) with a simple center trielliptic is presented. The finite element method is applied in this study to analyze PCF. By adjusting the ellipticity and other parameters, the fiber performances can be optimized. As the parameters of the PCF are finalized, i.e., the number of cladding N=4, lattice constant Λ =1.6 μm, and ellipticity η =2, a high birefringence of 3.56×10-2 can be obtained at the wavelength λ=1.55 μm . Moreover, the dispersions of the X- and Y-polarized modes are relatively flat in the range of 1 μm to 1.55 μm along with a confinement loss as low as 9.63×10-6 dB/m. Besides, this structure has demonstrated remarkable robustness, maintaining its superior performance even when subjected to significant displacements or rotations. Due to the characteristics of the high birefringence and low confinement loss, this PCF can be used for long distance optical fiber communication, fiber sensing, dispersion compensation, and supercontinuum generation.

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Section: Introductionmentioning

confidence: 99%

A highly birefringent photonic crystal fiber based on a central trielliptic structure: FEM analysis

Liu,

Wen,

Zhou

et al. 2023

Phys. Scr.

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“…In recent years, with the extensive application of surface plasmon resonance (SPR) technology, the combination of SPR with fiber sensor has attracted more and more attention [16]- [17]. Because of its portability, miniaturization and easy integration, the sensor has great application potential in biomedicine, health care, environmental pollution detection, industrial production monitoring and other fields [16]- [18]. As the fiber SPR sensing technology combines the excellent sensing accuracy and test sensitivity of refractive index, it is very suitable for the measuring of DOM components.…”

Section: Introductionmentioning

confidence: 99%

A Measuring Method of DOM Components Based on Fiber SPR Sensor and ICPSO-BP Neural Network

Dai

2022

IEEE Access

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As the single sensor is not competent for the variation of the total amount and components of DOM in a large range, according to the cross-sensitivity between fiber SPR sensors with different structures, a measuring method of DOM components is proposed by combining the deep learning algorithm with the fiber SPR sensors based on the regulation of metal film thickness. We exploit an improved cooperative particle swarm optimization algorithm (ICPSO) aiming at the problem of particle diversity loss caused by premature convergence of particles which not only considers the optimization information of single particles, the global particles and particles in the groups, but also considers the proportion of shared information. Then, the ICPSO is used to optimize the weights and thresholds of back propagation neural network (BPNN) to establish ICPSO-BP network, so as to construct three classifiers consists of ICPSO-BP (wave length), ICPSO-BP (spectral width), ICPSO-BP (light intensity). By comprehensive training of the resonance wavelength, spectrum width and light intensity of SPR effect for the measured water, five DOM components (tyrosine protein, tryptophan protein, fulvic acid, dissolved microbial metabolites and humic acid) and their concentrations in four water samples, namely, Inner canal (A), Hongze lake (B), Park lake (C) and Campus lake (D), have been effectively predicted. The prediction accuracy is more than 80%, among them, the highest prediction rate of tryptophan protein and its concentration in Hongze lake (B) which can reach 86%. Therefore, the dynamic range of SPR measurement is effectively expanded and better measurement accuracy and sensitivity are maintained, which verifies the feasibility of the proposed method in DOM measuring and provide a new idea for DOM component testing.

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“…Optical fiber sensors based on PCFs have been used in various applications such as Magnetic sensors [31][32][33], temperature sensors [34][35][36], biosensors [37][38][39], fuel sensors [40], and cancer sensors [41][42]. The purpose of the design of these sensors is to reach the highest relative sensitivity and lower confinement loss at their operation wavelength.…”

mentioning

confidence: 99%

New hybrid photonic crystal fiber gas sensor with high sensitivity for ammonia gas detection

2022

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A new hybrid photonic crystal fiber (PCF) with circular rings based microstructure core gas sensor has been proposed for detecting ammonia gas at the wavelength of 1.544 μm. The finite element method has been used for numerical investigation. According to the results, the relative sensitivity is obtained as high as 70.25% at a wavelength of 1.544 μm. Furthermore, high birefringence and effective area are acquired by orders of 1.24 × 10−3 and 13.35 μm2, respectively. Finally, a low confinement loss of 1.202 × 10−1 dB/m is gained at the same wavelength. The absorption spectroscopy system can be used for detecting ammonia gas for experimental work. The theoretical results show that the proposed PCF still exhibits high relative sensitivity for a low concentration of ammonia gas at the wavelength of 1.544 μm, which makes the sensors detect gas precisely and can be used for medical and industrial applications.

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The design and analysis of a dual-diamond-ring PCF-based sensor

Cited by 13 publications

References 19 publications

A highly birefringent photonic crystal fiber based on a central trielliptic structure: FEM analysis

A highly birefringent photonic crystal fiber based on a central trielliptic structure: FEM analysis

A Measuring Method of DOM Components Based on Fiber SPR Sensor and ICPSO-BP Neural Network

New hybrid photonic crystal fiber gas sensor with high sensitivity for ammonia gas detection

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