Fiber in-line Mach–Zehnder interferometer based on an inner air-cavity for high-pressure sensing

Talataisong, Wanvisa; Wang, D. N.; Chitaree, Ratchapak; Liao, Changrui; Wang, C.

doi:10.1364/ol.40.001220

Cited by 83 publications

(29 citation statements)

References 16 publications

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“…A positive aspect of optical pressure sensors is that they are immune to electromagnetic fields [9,10]. There have been several designs for optical pressure sensing devices such as all-fiber pressure sensor with SiO 2 diaphragm proposed by Donlagic et al [11], photonic-crystal fiber pressure sensor for dual environment monitoring by Osorio et al [12], and fiber in-line Mach-Zehnder interferometer based on an inner air-cavity for high-pressure sensing proposed by Talataisong et al [13].…”

Section: Introductionmentioning

confidence: 99%

An Optical MIM Pressure Sensor Based on a Double Square Ring Resonator

2018

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In this paper, we have proposed a metal-insulator-metal (MIM) pressure sensor which consists of two plasmonic waveguides and a double square ring resonator. The two square rings are connected via a rectangular patch located between the two of them. The surface plasmon polaritons (SPPs) can be transferred from a square ring to the other through this patch. The finite-difference time-domain method (FDTD) has been used to simulate the device. Applying a pressure on the structure, it deforms, and a red shift of 103 nm in the resonance wavelength has been calculated. The deformation is linearly proportional to the wavelength shift in a wide range of wavelength. The proposed optical plasmonic pressure sensor has a sensitivity of 16.5 nm/MPa which makes it very suitable for using in biological and biomedical engineering.

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Section: Introductionmentioning

confidence: 99%

An Optical MIM Pressure Sensor Based on a Double Square Ring Resonator

2018

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“…With the advantages of immunity to electromagnetic interference, fast signal acquisition, high sensitivity and compact structure, optical fiber sensors have been extensively investigated for gas pressure sensing. A variety of optical fiber pressure sensors based on various types of fiber components, including long-period fiber gratings (LPFGs) [1][2][3][4][5][6], fiber Bragg gratings (FBGs) [7][8][9][10][11], and fiber interferometers [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] have been proposed in recent years. LPFGs inscribed in single-mode fiber (SMF) [1], photonic crystal fiber [2][3][4], polymer micro-structured fiber [5], boron co-doped optical fiber [6] and FBGs inscribed in single-mode fiber [7,8], side-hole fiber [9], air-hole micro-structured fiber [10,11], have been used as gas pressure sensors, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Mach-Zehnder interferometer (MZI) has also been employed as gas pressure sensor. The fiber in-line MZIs based on an inner air-cavity with open micro-channel [25] and twin-core fiber [26] have been demonstrated for gas pressure sensing with the sensitivity of 8.239 pm/kPa and −9.6 pm/kPa, respectively. Overall, the sensitivity of the MZI based gas pressure sensor is relatively low, which needs to be further improved.…”

Section: Introductionmentioning

confidence: 99%

High-sensitivity gas pressure sensor based on hollow-core photonic bandgap fiber Mach-Zehnder interferometer

et al. 2018

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We propose and experimentally demonstrate a highly sensitive gas pressure sensor based on a near-balanced Mach-Zehnder interferometer (MZI) and constructed by hollowcore photonic bandgap fiber (HC-PBF) in this paper. The MZI is simply constructed by fusion splicing two HC-PBFs, which are of slightly different lengths, between two 3-dB couplers. The two output ends of each coupler are approximately equal in length, to ensure that the optical path variations of the MZI only result from the differences in the lengths between the two HC-PBFs. To apply the MZI for gas pressure sensing, a femtosecond laser is employed to drill a micro-channel in one of the two HC-PBF arms. The experiment result shows that the proposed MZI based gas pressure sensor achieves an ultrahigh sensitivity, up to 2.39 nm/kPa, which is two orders of magnitude higher than that of the previously reported MZI-based gas pressure sensors. Additionally, the effects resulting from the absolute length and relative length of the two HC-PBFs on gas pressure sensing performance are also investigated experimentally and theoretically, respectively. The ultra-high sensitivity and ease of fabrication make this device suitable for gas pressure sensing in the field of industrial and environmental safety monitoring.

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“…Miniature fiber-optic interferometers have attracted broad attention for their advantages of simple structure, compact size, immunity to electromagnetic interference, high sensitivity and accuracy, and so on. The commonly used configurations for fiber-optic interferometers include Mach-Zehnder interferometers [1][2], Michelson interferometers [3][4], and Fabry-Perot interferometers [5][6][7]. Compared with the fiber-optic Fabry-Perot interferometers, miniature fiber-optic Fabry-Perot interferometers (MOFPIs) have also been widely applied in the measurement of temperature, strain, pressure, acceleration, displacement, and ultrasound.…”

Section: Introductionmentioning

confidence: 99%

Characterization of miniature fiber-optic Fabry-Perot interferometric sensors based on hollow silica tube

2016

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A miniature fiber-optic Fabry-Perot interferometer (MOFPI) fabricated by splicing a hollow silica tube (HST) with inner diameter of 4 m to the end of a single-mode fiber is investigated and experimentally demonstrated. The theoretical relationship between the free spectrum range and the length of HST is verified by fabricating several MOFPIs with different lengths. We characterize the MOFPIs for temperature, liquid refractive index, and strain. Experimental results show that the sensitivities of the temperature, liquid refractive index, and strain are 16.42 pm/℃,-118.56 dB/RIU, and 1.21 pm/, respectively.

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Fiber in-line Mach–Zehnder interferometer based on an inner air-cavity for high-pressure sensing

Cited by 83 publications

References 16 publications

An Optical MIM Pressure Sensor Based on a Double Square Ring Resonator

An Optical MIM Pressure Sensor Based on a Double Square Ring Resonator

High-sensitivity gas pressure sensor based on hollow-core photonic bandgap fiber Mach-Zehnder interferometer

Characterization of miniature fiber-optic Fabry-Perot interferometric sensors based on hollow silica tube

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