Hollow-core Photonic Crystal Fiber Sensor for Refractive Index Sensing

Ahmed, Shihab; Mou, Jannatul Robaiat; Mollah, Md. Aslam; Debnath, Niloy

doi:10.1109/ictp48844.2019.9041790

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…The relative sensitivities and confinement loss are compared with respect to the different core-cladding PCF configurations. In the literature [12][13][14][15], the designs have similar core dimensions, and by increasing the amount of cladding air hole layers, the relative sensitivity increases slightly. This deduces that expanding the cladding layers increases the sensitivity results.…”

Section: Resultsmentioning

confidence: 99%

“…In recent literature [12][13][14][15], food additive PCF sensors have been studied. A group of researchers [12] introduced 3 different PCF designs for saccharin, sorbitol, and butyl acetate detection.…”

Section: Introductionmentioning

confidence: 99%

“…At the operating wavelength of 1.4 μm, PCF-1 deduces relative sensitivity of 93.81% and confinement loss of order 10 −9 dBm −1 , while PCF-2 depicts relative sensitivity of 94.68% and confinement loss of about 10 −10 dBm −1 . Another group of researcher [14] recommended two designs for detecting sorbitol. These included design PCF-1, which had a circular core with 3 rings of cladding air holes in a hexagonal arrangement, and design PCF-2, which had a hexagonal hole as its core and same cladding configuration.…”

Section: Introductionmentioning

confidence: 99%

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Unsafe food additive sensing through octagonal-core photonic crystal fibre sensor

2023

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To detect food additives, a simple photonic crystal fibre design based on an octagonal hole and hollow circular cladding holes in two layers has been introduced. The numerical study of the design is conducted by simulation in the COMSOL Multiphysics software with the infiltrated test analytes: saccharin, sorbitol, and butyl acetate, operating in the wavelength variation from 1.6 to 4.0 µm. The performance of the proposed sensor is determined by analysing the principal optical parameters: effective refractive index, power fraction, relative sensitivity, confinement loss, chromatic dispersion, propagation constant, V-parameter, spot size, and beam divergence. At the optimal wavelength of 2.0 µm, the sensor design depicts high relative sensitivities of 98.06% for saccharin, 97.05% for sorbitol, 95.81% for butyl acetate, and 3.82 × 10−23 dB/m for saccharin, 3.44 × 10−22 dB/m for sorbitol, and 1.81 × 10−21 dB/m for butyl acetate for confinement loss, which is extremely low. Hence, the proposed food additive sensor is suitable for actual sensing applications based on these obtained results.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Unsafe food additive sensing through octagonal-core photonic crystal fibre sensor

2023

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Design and characterization of a photonic crystal fiber for improved THz wave propagation and analytes sensing

et al. 2022

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Characteristic Analysis and Structural Design of Hollow-Core Photonic Crystal Fibers with Band Gap Cladding Structures

Wan

Zhu

et al. 2021

Sensors

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Due to their flexible structure and excellent optical characteristics hollow-core photonic crystal fibers (HC-PCFs) are used in many fields, such as active optical devices, communications, and optical fiber sensing. In this paper, to analyze the characteristics of HC-PCFs, we carried out finite element analysis and analyzed the design for the band gap cladding structure of HC-PCFs. First, the characteristics of HC19-1550 and HC-1550-02 in the C-band were simulated. Subsequently, the structural optimization of the seven-cell HC-1550-02 and variations in characteristics of the optimized HC-1550-02 in the wavelength range 1250–1850 nm were investigated. The simulation results revealed that the optimal number of cladding layers is eight, the optimal core radius is 1.8 times the spacing of adjacent air holes, and the optimal-relative thickness of the core quartz-ring is 2.0. In addition, the low confinement loss bandwidth of the optimized structure is 225 nm. Under the transmission bandwidth of the optimized structure, the core optical power is above 98%, the confinement loss is below 9.0 × 10−3 dB/m, the variation range of the effective mode field area does not exceed 10 μm2, and the relative sensitivity is above 0.9570. The designed sensor exhibits an ultra-high relative sensitivity and almost zero confinement loss, making it highly suitable for high-sensitivity gas or liquid sensing.

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Hollow-core Photonic Crystal Fiber Sensor for Refractive Index Sensing

Cited by 3 publications

References 9 publications

Unsafe food additive sensing through octagonal-core photonic crystal fibre sensor

Unsafe food additive sensing through octagonal-core photonic crystal fibre sensor

Design and characterization of a photonic crystal fiber for improved THz wave propagation and analytes sensing

Characteristic Analysis and Structural Design of Hollow-Core Photonic Crystal Fibers with Band Gap Cladding Structures

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