Miniature Fabry-Perot interferometric sensor for temperature measurement based on photonic crystal fiber

Fu, Xinghu; Xie, Hongqiang; Wang, Feng; Jiang, Peng; Fu, Guangwei; Bi, Weihong

doi:10.1007/s11801-015-5131-x

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…As shown in Fig.4 Moreover, it has been found that this sensor also has the temperature insensitivity in previous study [13] . Therefore, this sensor is able to overcome the problem of cross sensitivity of temperature in the measurement, and can be better used for the RI sensing.…”

Section: Fig4 Relationships Between Wavelength Shift and Ri Of Sodiumentioning

confidence: 53%

High-sensitivity refractive index sensors based on fused tapered photonic crystal fiber

Xie

Chao

et al. 2016

Optoelectron. Lett.

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In this paper, a novel liquid refractive index (RI) sensor based on fused tapered photonic crystal fiber (PCF) is proposed. It is fabricated by fusing and tapering a section of PCF which is spliced with two single-mode fibers (SMFs). Due to the fused biconical taper method, the sensor becomes longer and thinner, to make the change of the outside RI has more direct effects on the internal optical field of the PCF, which finally enhances the sensitivity of this sensor. Experimental results show that the transmission spectra of the sensor are red-shifted obviously with the increase of RI. The longer the tapered region of the sensor, the higher the sensitivity is. This sensor has the advantages of simple structure, easy fabrication, high performance and so on, so it has potential applications in RI measurement.Among many refractive index (RI) sensing devices, the fiber-based RI sensors stand out for their small size, high sensitivity, fast response and good stability [1][2][3] . Nowadays, a number of fiber-based RI sensors have been reported, including long period fiber grating (LPFG) [4,5] , fiber Bragg grating (FBG) [6,7] , core offset [8] , imbedded micro air-cavity [9] and many other structures [10,11] . All of them can be applied to the RI sensing field. However, these approaches still have some disadvantages, such as low performance, complicated fabrication and cross sensitivity. Thus, a further research that aims to find a high performance special structure with low complexity is necessary.In this paper, a Mach-Zehnder interference fiber sensor is demonstrated for liquid RI measurement. It is fabricated by just splicing a few-centimeter-long segment of tapered photonic crystal fiber (PCF) between two standard single-mode fibers (SMFs). Utilizing the double beam interference principle, the principle of the sensor is analyzed, and the relationship between the shift of interference spectrum and the change of the liquid RI is obtained. In order to verify the RI sensitivity, five sensors with different tapered lengths were fabricated and applied in a straightforward experiment. The experimental results show that the interference patterns of different sensors have a large red shift as increasing RI. Moreover, the RI sensitivity can be enhanced by increasing the tapered PCF length.As shown in Fig.

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Section: Fig4 Relationships Between Wavelength Shift and Ri Of Sodiumentioning

confidence: 53%

High-sensitivity refractive index sensors based on fused tapered photonic crystal fiber

Xie

Chao

et al. 2016

Optoelectron. Lett.

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“…Moreover, fabrication requirements of our design is much simpler compared with other types of PCs cavity or ring resonator temperature sensors [58,59]. Compared with these structures, performance of the proposed structure is optimum as well [47,60,61]. For example, Xing-hu et al [47] investigated a limited value of sensitivity that is not exceeding 0.0112 nm °C−1 through the temperature variation 30 to 80 °C.…”

Section: Lc Annular Pcs Temperature Sensormentioning

confidence: 99%

“…Compared with these structures, performance of the proposed structure is optimum as well [47,60,61]. For example, Xing-hu et al [47] investigated a limited value of sensitivity that is not exceeding 0.0112 nm °C−1 through the temperature variation 30 to 80 °C. Table 3 clarifies the difference between the performance of our sensor and some of the previous published works.…”

Section: Lc Annular Pcs Temperature Sensormentioning

confidence: 99%

“…Here, LC is used to support the role of temperature sensors. To the best of our knowledge, such type of temperature sensors based on photonic structures are suffering from the low sensitivity that could not be greater than 0.0112 nm °C−1 [45][46][47]. This small value is due to the limited change in the permittivity of PCs constituents with the temperature variation.…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity enhancement of annular one dimensional photonic crystals temperature sensors with nematic liquid crystals

2020

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A novel design of one dimensional annular photonic crystals with a low birefringence nematic liquid crystal as a defect layer is introduced. The output field of the sensor structure is plotted after different optimization steps on all constituents such as thickness and core radius of the starting medium. The performance of the sensor was studied using different quality parameters such as sensitivity, figure of merit, detection limit and resolution. The designed sensor exhibits a sensitivity of about 0.224 nm °C−1 due to the presence of the liquid crystal material. The proposed sensor design can be used as a narrowband optical filter in the visible region around two wavelengths: 600 nm and 700 nm. As an optoelectronic device, this structure can serve as a temperature sensor with higher sensitivity than the conventional one dimensional photonic crystal structures and photonic crystals fibers.

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“…Moreover, the deformation of the PCs periodicity could lead to the localization of the electromagnetic waves with specified wavelengths as resonant or defect modes [22]. Thus, many researchers devoted their attention towards the PCs fabrications [15,16,[23][24][25][26]. In recent time, 1D PCs and PC cavities are experimentally investigated based on the spin coating and cyclic anodizing techniques [15,16,23,24].…”

Section: Introductionmentioning

confidence: 99%

Theoretical verification of photonic crystals sensor for biodiesel detection and sensing

Elsayed

Mehaney

2020

Phys. Scr.

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Among the two past decades, the biodiesel fuels received a significant attention due to its lower hydrocarbon emissions and low sulfur diesel. However, the incomplete transesterification represents the main problem for the possibility of wider use. Thus, we present in this research a new method for detecting and measuring of methyl ester biodiesel fuel based on its optical characteristics. The proposed sensor is designed using the well-known one dimensional photonic crystals. The cornerstone of our idea is mainly based on two sides. First, the inclusion of methyl ester as a defect layer inside the one dimensional photonic crystals gives rise to the formation of a resonant peak within the photonic band gap. Second, the concentration of the converted methyl ester due to the transesterification reaction of soybean oil is closely related to its refractive index. Therefore, the sensing and detection procedure is essentially based on the dependence of the characteristics of the resonant peak on the concentration of the biodiesel fuel. The parameters that refer to the performance of our sensor such as, the sensitivity, figure of merit and the detection limit are investigated. Moreover, the effect of the defect layer thickness and the angle of incidence on the performance of our sensor is demonstrated. The numerical results show that our design could provide high sensitivity of 136 nm RIU−1 and figure of merit 2240 RIU–1. In addition to that, it could differentiate between the different biodiesel fuels despite the very limited difference between their indices of refraction.

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Miniature Fabry-Perot interferometric sensor for temperature measurement based on photonic crystal fiber

Cited by 9 publications

References 16 publications

High-sensitivity refractive index sensors based on fused tapered photonic crystal fiber

High-sensitivity refractive index sensors based on fused tapered photonic crystal fiber

Sensitivity enhancement of annular one dimensional photonic crystals temperature sensors with nematic liquid crystals

Theoretical verification of photonic crystals sensor for biodiesel detection and sensing

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