Highly birefringent single mode spiral shape photonic crystal fiber based sensor for gas sensing applications

Islam, Ibadul; Paul, Bikash Kumar; Ahmed, Kawsar; Hasan, Rabiul; Chowdhury, Shyamal; Islam, Shadidul; Sen, Shuvo; Bahar, Ali Newaz; Asaduzzaman, Sayed

doi:10.1016/j.sbsr.2017.04.001

Cited by 36 publications

(8 citation statements)

References 48 publications

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“…They studied the optical properties of the proposed fiber numerically by full vector finite element method (FEM) using the software COMSOL. The octagonal lattice of the HC-PCF was optimized to obtain better relative sensitivity and low confinement loss acquiring the maximum relative sensitivity of around 97% and minimum confinement loss of ~0.007 dB/m at 1670 nm wavelength where the absorption line is located; on the other hand, in [73], a gas sensor based on spiral HC-PCF (see Figure 6) was presented. Again, in order to optimize its structure, a numerical analysis was performed by utilizing FEM, varying the geometrical parameters to obtain an optimized sensitivity at the frequencies close to the absorption lines of methane within the range 1000−1800 nm.…”

Section: Mof Gas Sensors Based On Absorption Bandsmentioning

confidence: 99%

“…The cladding is formed with spiral shape that contains circular air holes; (b) air hole details of the first spiral ring of the core S-PCF; (c) details of the circular structure of the cluster in the core region which are formed into a microstructure shape; (d) core region magnification of the enlarged end face view of the suggested S-PCF. Reprinted with permission from[73].…”

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confidence: 99%

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Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

López-Torres

Elosúa

Arregui

2020

Sensors

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Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors (OFS) based on them has attracted the interest of many research groups because of the market niches that can take advantage of their specific features. Due to their unique structure based on a certain distribution of air holes, MOFs are especially useful for sensing applications: on one hand, the increased coupling of guided modes into the cladding or the holes enhances significantly the interaction with sensing films deposited there; on the other hand, MOF air holes enhance the direct interaction between the light and the analytes that get into in these cavities. Consequently, the sensitivity when detecting liquids, gasses or volatile organic compounds (VOCs) is significantly improved. This paper is focused on the reported sensors that have been developed with MOFs which are applied to detection of gases and VOCs, highlighting the advantages that this type of fiber offers.

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Section: Mof Gas Sensors Based On Absorption Bandsmentioning

confidence: 99%

mentioning

confidence: 99%

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

López-Torres

Elosúa

Arregui

2020

Sensors

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“…The THz signal transmission in PCFs is supported by any one of the other subsequent mechanisms: (a) total internal reflection effect, 10 (b) modified total internal reflection (mTIR) effect, 11 and (c) photonic band-gap effect 12 . The structural arrangements in PCF can have any one or more than one among the subsequent geometries, such as, rectangle, square, 13 hexagonal, 14 circular, 15 octagonal, 16 spiral, 17 hybrid, 18 etc.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of slotted rectangular photonic crystal fiber structures in terahertz waveguidance

2022

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. For an efficient and reliable transmission of data beyond 5G and 6G technologies, proper waveguide structures are needed. We present a rectangular solid-core slotted cladding photonic crystal fiber (PCF) and analyze its signal transmission capability in the terahertz (THz) regime. The proposed PCF performances have been investigated numerically using the finite element method. Various parameters, such as birefringence, core power fraction, effective material loss, effective area, mode-field diameter, beat length, dispersion, confinement loss, etc., have been studied by varying the geometry of the PCFs. The obtained simulation results exhibit dispersion of the order 2 ns / THz / cm, high birefringence of 0.0983, low confinement loss of the order 10 − 19 mm − 1, the effective area of 0.073 mm2, and high core power fraction of 99.8% in 0.2 to 2 THz range. All the parameters have been optimized among six different structures of the proposed PCF. This analysis will be helpful for the researchers to predict the transmission capability of THz waves in a rectangular PCF waveguide, which assures the boost in communication beyond 5G toward 6G evolution.

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“…The first hexagonal PCF was proposed in 1996. From then, many complex structures were introduced like octagonal [39], spiral [40], circular [41], honeycomb cladding [42], and hybrid [43] to enhance the waveguide properties, hence the performance. Over the years, many PCF designs have been presented for sensing applications.…”

Section: Introductionmentioning

confidence: 99%

Design of a hexagonal outlined porous cladding with vacant core photonic crystal fibre biosensor for cyanide detection at THz regime

Islam

Naser

Jaba

et al. 2022

IET Optoelectronics

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A hexagonal outlined porous cladding with vacant core photonic crystal fibre (HOPC‐VC‐PCF) sensor using Zeonex has been presented, which can detect cyanides at the THz regime. Cyanides are incredibly lethal chemicals to humans as they can rapidly cause impairment or even death; such harmful substances must be identified precisely. The proposed model has been analysed at a broad spectrum of THz regimes for three different analytes, and the numerical investigation is performed using the Finite element method (FEM). Simulation results exhibit that at optimum design parameters, extremely high sensitivity of 99.75%, negligible confinement loss of 0.5 × 10−13 cm−1, extremely low and flat dispersion of 0.12 ps THz/cm, and other excellent features were obtained. The performance analysis and the design methodology have been depicted in detail. Due to the simplistic design, fabrication of the model is easily achievable by current technology. The remarkable sensing capabilities will not only make it suited in chemicals analysis but also will play vital roles in other applications as well.

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Highly birefringent single mode spiral shape photonic crystal fiber based sensor for gas sensing applications

Cited by 36 publications

References 48 publications

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

Performance analysis of slotted rectangular photonic crystal fiber structures in terahertz waveguidance

Design of a hexagonal outlined porous cladding with vacant core photonic crystal fibre biosensor for cyanide detection at THz regime

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