Realization of low confinement loss acetylene gas sensor by using hollow-core photonic bandgap fiber

Arman, Hassan; Olyaee, Saeed

doi:10.1007/s11082-021-02969-x

Cited by 12 publications

(5 citation statements)

References 37 publications

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“…However, the system also used more collimating lenses and parabolic mirrors, and the structural design was more complex, which was not conducive to the integration. To improve the sensor performance, Arman et al studied the gas sensitive model and proposed an optimization method for the photonic crystal HCF sensor [17,18] . It has been proved that the confinement loss and sensitivity can be improved through mode interference elimination and size optimization of the fiber.…”

Section: Introductionmentioning

confidence: 99%

Mid-Infrared Hollow-Core Waveguide Gas Sensor for Low-Concentration Sulfur Hexafluor Detection

Zhou,

Yu,

Yin

et al. 2024

IEEE Access

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Sulfur hexafluoride gas (SF6) is widely used in various electrical insulating equipment in the electric power industry. In this paper, a novel mid-infrared hollow-core fiber (HCF) gas sensor based on infrared spectral absorption is proposed for low-concentration SF6 leakage detection. The fiber was coupled with the mid-infrared source and detector directly through a mechanical process interface. With a narrow filter, target gas absorption band light was filtered out. The optimal length of the optical fiber is derived by theoretical modeling and optimization solutions. The experimental results show that the sensor has sub-ppm measurement limitation for SF6 gas by utilizing a Lab-view-based digital dual-phase lock-in amplifier. The calibration results of SF6 standard gas at concentrations of 0.5ppm, 2.45ppm, 4.9ppm, and 9.92ppm show that the detection error of the sensor is less than 1%. Repeatability test results show the sensor can achieve high stability and low zero drift. It provides a compact and low-cost solution for low-concentration SF6 detection in the environment.

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Section: Introductionmentioning

confidence: 99%

Mid-Infrared Hollow-Core Waveguide Gas Sensor for Low-Concentration Sulfur Hexafluor Detection

Zhou,

Yu,

Yin

et al. 2024

IEEE Access

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“…Excellent light guiding characteristics can be achieved through some special structures, such as elliptical [4], hexagonal [5], octagonal [6], spiral [7] and circular cladding [8][9][10]. By controlling the size and spacing of holes, excellent characteristics can be fulfilled, such as strong confinement field [11], improved sensitivity [12], low confinement loss [13], ultra-flattened dispersion [14][15], higher birefringence [16], and enhanced nonlinear effects [17]. Sensors-based PCF with their unique properties brings some new opportunities to the multi-purpose sensors such as pressure sensors [18], refractive index sensors [19], biosensors [20] and chemical sensors [21].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Analysis and Structural Design of Photonic Crystal Fibers for Gas Sensing Applications

Zheng¹,

Liu²

2023

Preprint

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A total internal reflection photonic crystal fiber (PCF) based on hexagonal core is proposed for gas sensing in a specific wavelength range. The higher sensitivity and lower confinement loss were realized by the structure of the proposed PCF consists of two layers with circular holes rotated hexagonally around a core region and six slotted air-hole in the cladding based on numerical analysis. The simulation results show that the enhancement of the relative sensitivity has been done by enhancing the diameter of the hexagonal shape air-hole cladding (d1) and the hexagonal arranged holes around the central solid core (d0) in this design. Also, the confinement loss has been reduced by enhancing the ratio of length to width of slotted holes (l/w) and decreasing the cladding air-hole diameters (d1). As the refractive index increases, the wavelength shifts toward the long wavelength. And in a certain temperature range, the transmission characteristics of the device does not change with the temperature. The results are helpful for designing high performance PCF for gas sensing applications.

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“…The combined use of HCARFs and spectral shaping techniques through all-fiber structures has led to significant progress in SC performance and efficiency. In particular, the usage of hollow-core photonic bandgap fiber (HC-PBGF) proposed in [29] has been useful in creating low confinement loss sensors for gases such as acetylene. By leveraging the properties of HC-CAPBG fibers, such as low attenuation, single-mode operation, and low bending sensitivity, the realization of low confinement loss sensing for trace gases can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum Shaping via Hollow Core Anti-Resonant Fiber

Chen

Liao

et al. 2023

Photonics

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This study proposes a novel supercontinuum (SC) shaping method using an all-fiber structure with little influence on the time domain and frequency domain of the SC spectrum. An SC is a type of laser source with a broad spectrum. However, its pump wavelength has a much greater intensity than other wavelengths, limiting the application of the SC. Our approach takes advantage of a hollow core anti-resonance fiber to attenuate the power density at the pump wavelength appropriately, thus flattening the SC spectrum. Simulation and experimental results both support the effectiveness of this method in reducing the wavelength at the pump. In our experiment, the use of a hollow core anti-resonant fiber decreased the intensity at the pump wavelength of the SC by 9 dB. By employing this method, the energy threshold can be lowered, allowing the SC to be applied to a larger range of experimental setups or applied scenarios with fewer energy requirements.

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Realization of low confinement loss acetylene gas sensor by using hollow-core photonic bandgap fiber

Cited by 12 publications

References 37 publications

Mid-Infrared Hollow-Core Waveguide Gas Sensor for Low-Concentration Sulfur Hexafluor Detection

Mid-Infrared Hollow-Core Waveguide Gas Sensor for Low-Concentration Sulfur Hexafluor Detection

Characteristic Analysis and Structural Design of Photonic Crystal Fibers for Gas Sensing Applications

Supercontinuum Shaping via Hollow Core Anti-Resonant Fiber

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