Slightly Tapered Optical Fiber With Dual Inner Air-Cavities for Simultaneous Refractive Index and Temperature Measurement

Liu, Jibing; Wang, D. N.; Zhang, Lei

doi:10.1109/jlt.2016.2590568

Cited by 35 publications

(11 citation statements)

References 14 publications

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“…26,27 c. Abrupt (nonadiabatic) tapers. [28][29][30][31][32] Short-high-pitch (nonadiabatic) tapers can act as effective mode coupling events that can couple guided and cladding modes or different guided modes within few or multimode waveguides ( Fig. 11).…”

Section: Multiparameter Sensors Based On Mach-zehnder and Michelson Imentioning

confidence: 99%

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Multiparameter fiber-optic sensors: a review

2019

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Needs for sensor miniaturization, versatile sensing solutions, and improved measurements' performances in difficult operating environments have recently driven considerable research in optical fiber sensor for multiparameter measurements. Multiparameter sensors not only enable new sensors' functionalities, but can also improve achievable measurement performances for some frequently measured parameters considerably. This study provides a review of work in the field of miniature fiber-optic sensors that allows independent and simultaneous measurements of two or more different physical or chemical parameters. Sensor designs and corresponding signal processing schemes are reviewed and compared.

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Section: Multiparameter Sensors Based On Mach-zehnder and Michelson Imentioning

confidence: 99%

“…MZIs are encountered most frequently in sensors for simultaneous measurement of RI and temperature. The two most often reported approaches utilize either a single MZI 23,24,27,29,30,[33][34][35][36][37] or a cascading of two MZIs. [19][20][21]26,31,38 a.…”

Section: Multiparameter Sensors Based On Mach-zehnder and Michelson Imentioning

confidence: 99%

Multiparameter fiber-optic sensors: a review

2019

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“…How to obtain the external temperature and RI at the same time? Figure 19(a) is a schematic diagram Temperature Sensing of a fiber in-line MZI based on dual inner air-cavities for simultaneous refractive index and temperature sensing [16]. The dual inner air-cavities are fabricated by use of femtosecond laser micromachining, fusion splicing, and slightly tapering techniques.…”

Section: Temperature Sensingmentioning

confidence: 99%

“…In Figure 19(b), the parameters kT1 and kT2 can be obtained through the two dips of 1493 and 1569. The calculation process is complicated, and the specific derivation can refer to [16]. In Figure 19(c), the parameters kn1 and kn2 can be figured out in the same method.…”

Section: Temperature Sensingmentioning

confidence: 99%

Optic-Fiber Temperature Sensor

Zhang¹,

Su²,

Ma³

et al. 2018

Temperature Sensing

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As an important parameter in industry, agriculture, biomedical, and aerospace, temperature possesses a significant position for the development of our society. Thus, it has become a hot point to develop novel sensors for temperature monitoring. Compared with traditional electronic sensors, optical fiber sensors break out for the compact structure, corrosion resistance, multiplex and remote sensing capability, cheap prices, and large transmission capacity. Especially the phase modulation type optical fiber sensors attract much attention for the fast and accurate measurement of the external parameters in a large dynamic measurement range. In this work, we review the optical fiber Mach-Zehnder interferometer (MZI) for temperature sensing which is widely used these years. The fundamental principles of MZI fiber sensors are proposed and discussed to further understand MZI. Different kind of structures for temperature sensing of recent years are summarized as several typical MZI categories and their advantages and disadvantages are indicated separately. Finally, we make a conclusion of the MZI temperature sensing and several methods typically to realize the MZI in practical application for the readers.

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“…Till date, many temperature sensors based on optical fiber structures have been proposed and demonstrated. This includes the usage of fiber Bragg grating (FBG), 6,7 long period gratings, 8 photonic crystal fiber (PCF) 9,10 and tapered fiber 11‐13 . Tapered fiber is commonly used as it is easier to fabricate and is more compact.…”

Section: Introductionmentioning

confidence: 99%

All fiber temperature sensor based on light polarization measurement utilizing graphene coated tapered fiber

Tiu

Haris

Ahmad

et al. 2020

Micro & Optical Tech Letters

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In this work, all fiber temperature measurement based on change of light polarization is demonstrated using tapered fiber coated with graphene. The large evanescent field of tapered fiber allows graphene to absorb the surrounding heat and subsequently this changes the refractive index of graphene coated tapered fiber. The change of refractive index is due to thermo‐optic effect. When there is a change in surrounding temperature, refractive index of the coated tapered fiber changes and this subsequently modifies the injected light polarization. The proposed temperature sensor can measure temperature up to 250°C and its sensitivity is ascertained at 0.48°/°C. The proposed temperature sensor is beneficial for future Internet of Things (IoT) applications.

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Slightly Tapered Optical Fiber With Dual Inner Air-Cavities for Simultaneous Refractive Index and Temperature Measurement

Cited by 35 publications

References 14 publications

Multiparameter fiber-optic sensors: a review

Multiparameter fiber-optic sensors: a review

Optic-Fiber Temperature Sensor

All fiber temperature sensor based on light polarization measurement utilizing graphene coated tapered fiber

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