Large core-offset based in-fiber Michelson interferometer for humidity sensing

Sun, Haonan; Shao, Min; Han, Liang; Liang, Jing; Zhang, Rong; Fu, Haiwei

doi:10.1016/j.yofte.2020.102153

Cited by 22 publications

(5 citation statements)

References 22 publications

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“…In last decade, several fiber optic sensors have been realized and reported for temperature sensing. These interferometers include Fiber Brag Grating (FBG) [1][2][3][4], Long-Period Fiber Grating (LPFG) [5][6][7][8], Mode field interferometers [9,10], Mach-Zehnder Interferometers (MZI) [11][12][13][14][15][16], Michelson Interferometers (MI) [17,18], Fabry-Perot Interferometers (FPI) [19][20][21][22][23], Hybrid Interferometers (MZI and FPI) [12,14,24], Interferometer composed of Silicon-on-Insulators (SOI) [25], and Surface Plasma Resonance (SPR) [26]. In these configurations, mostly silica is used as a sensing element for temperature measurement.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Abbas¹,

Mumtaz²,

Dai³

et al. 2021

PIER Letters

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A highly sensitive temperature sensor based on a polymer cavity of a Fabry-Perot interferometer (FPI) is experimentally demonstrated. The interferometer gives ease in fabrication, and it can be formed by the induction of a thermos-sensitive polymer layer in between two single mode fibers (SMFs). The polymer is used as an FPI cavity for temperature sensing. Due to high thermal expansion coefficient (TEC) and thermos-optic coefficient (TOC) of polymer make the interferometer highly sensitive to ambient temperature. The maximum temperature sensitivity of 2.2209 nm/ • C for the polymer FPI cavity of 40.61 µm in the ambient temperature range of 28 • C to 34 • C is obtained. The proposed sensor shows the advantages of high sensitivity, compactness, simple fabrication, and low cost. Thus, it may become a part of various practical applications in the field of environmental science and engineering sciences.

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Section: Introductionmentioning

confidence: 99%

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Abbas¹,

Mumtaz²,

Dai³

et al. 2021

PIER Letters

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“…This configuration yielded sensitivities of 9.95×10−4 nm ppb−1 for Ni2+, 2.31×10−4 nm ppb−1 for Zn2+, and 4×10−4 nm ppb−1 for Na+. Interferometric sensors are further categorized based on their principle of operation into Mach–Zehnder interferometers (MZI), 66 , 67 Fabry–Perot interferometers (FPI), 68 , 69 Michelson interferometers (MI), 70 , 71 and Sagnac interferometers, 72 , 73 each with specific applications and advantages.…”

Section: Classification and Basic Principles Of Optical Fiber Sensormentioning

confidence: 99%

Optical fiber sensors for water and air quality monitoring: a review

Lyu,

Huang,

et al. 2023

Opt. Eng.

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Owing to their advantages of anti-electromagnetic interference, chemical resistance, high sensitivity, and fast response time, optical fiber sensors (OFSs) are widely used in biomedical, environmental monitoring, and food safety fields. We introduce the classification and principles of OFSs and summarize the applications and research progress of OFSs in water quality detection (heavy metals and microorganisms) and air quality monitoring (COx , NOx , and VOCs). Meanwhile, analytical performance, reliability, and environmental adaptability of OFSs are discussed and prospected.

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“…Figure 3 presents typical configurations of a FOMI. Figure 3a presents a FOMI comprised of two segments of fibers with different core diameters [120,121], while in Figure 3b, the pieces of the same fiber are offset [122,123]. Finally, in Figure 3c, a taper segment is sandwiched between two pieces of single-mode fibers (SMFs) [124,125].…”

Section: Michelson-based Sensormentioning

confidence: 99%

“…FOMI sensors are mainly used to measure physical parameters such as temperature (Table 8) and refractive index (Table 7), providing compact solutions. Additionally, a FOMI can be used as a relative humidity sensor [122,127] presenting a sensitivity of −0.166 dB/% RH and −0.083 dB/% RH, while the second structure is relatively more cost effective than the first one. Furthermore, an adiabatic biconical fused fiber taper spliced to an SMF [125] can be used as a displacement and curvature sensor for high-resolution optical instrumentation processes where mechanical bending is an important physical parameter to determine deformations, displacements, and curvature radiuses.…”

Section: Michelson-based Sensormentioning

confidence: 99%

In-Fiber Interferometric-Based Sensors: Overview and Recent Advances

Miliou

2021

Photonics

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In-fiber interferometric-based sensors are a rapidly growing field, as these sensors exhibit many desirable characteristics compared to their regular fiber-optic counterparts and are being implemented in many promising devices. These sensors have the capability to make extremely accurate measurements on a variety of physical or chemical quantities such as refractive index, temperature, pressure, curvature, concentration, etc. This article is a comprehensive overview of the different types of in-fiber interferometric sensors that presents and discusses recent developments in the field. Basic configurations, a brief approach of the operating principle and recent applications are introduced for each interferometric architecture, making it easy to compare them and select the most appropriate one for the application at hand.

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Large core-offset based in-fiber Michelson interferometer for humidity sensing

Cited by 22 publications

References 22 publications

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Optical fiber sensors for water and air quality monitoring: a review

In-Fiber Interferometric-Based Sensors: Overview and Recent Advances

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