In-Fiber Mach-Zehnder Interferometer Exploiting a Micro-Cavity For Strain and Temperature Simultaneous Measurement

Huang, Bingsen; Xiong, Songsong; Chen, Zhenshi; Zhu, Shufen; Zhang, Hui; Huang, Xincheng; Feng, Yuanhua; Gao, Shecheng; Shun-er, Chen; Liu, Weiping; Li, Zhaohui

doi:10.1109/jsen.2019.2906243

Cited by 28 publications

(12 citation statements)

References 31 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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“…Therefore, accurately measuring the temperature and refractive index is needed. Until now, in‐line fiber modal interferometers have been extensively investigated in Michelson interferometers, 5‐7 Mach‐Zehnder interferometers, 8‐10 Fabry‐Perot interferometers, 11‐13 and Sagnac interferometers, 14‐16 since their outstanding advantages of multi‐parameter measurements, high sensitivity, and corrosion resistance. Among these interferometers, optical fiber Mach‐Zehnder interferometer (MZI) has gained more attention.…”

Section: Introductionmentioning

confidence: 99%

Dual parameter in‐line fiber Mach‐Zehnder interferometer based on few‐mode fiber

Wang

Liu

et al. 2020

Micro & Optical Tech Letters

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This article proposes and demonstrates an in‐line fiber Mach‐Zehnder interferometer (MZI) based on few‐mode fiber for simultaneous measurement of temperature and refractive index. The Mach‐Zehnder interferometer is fabricated by fusion splicing a section few‐mode fiber (FMF) between hollow fiber (HF) microsphere cavity and single mode fiber (SMF) sphere. Since the different sensitivity responses of the two resonance dips in the transmission spectrum, the proposed sensor can simultaneous measurement of temperature and refractive index by monitoring the wavelength shifts of the two resonance dips. The experimental results show that the temperature sensitivities are 47.7 and 43.4 pm/°C within the temperature range from 30 to 80°C, respectively (red shift). The refractive index sensitivities are −21.41 and −30.11 nm/RIU when the refractive index changes from 1.330 to 1.394 RIU, respectively (blue shift). Furthermore, this sensor has excellent advantages of high extinction ratio, cost‐effective, ease of fabrication and compact structure, which make it competitive in the field of dual‐parameter sensing applications.

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“…In the literature, the development of all-fiber interferometers with different configurations has yielded considerable results, such as fiber-optic Michelson interferometers (FMI) [1,2,3,4], fiber-optic Mach–Zehnder interferometers (FMZI) [5,6,7,8], fiber-optic Fabry–Perot interferometers (FFPI) [9,10,11,12,13,14,15,16,17], and fiber-optic Fizeau interferometers (FFI) [18,19]. Typical FI based sensing systems and application examples have been categorized into 13 types, according to the measured parameters, i.e., temperature [20,21], mechanical vibration [22,23], acoustic wave [22,24], ultrasound [25,26], voltage [27,28], magnetic field [29,30], pressure [20,31], strain [21,32], flow velocity [33,34], humidity [35,36], gas [37,38], liquid level [39,40], and the refractive index (RI) [41,42]. Li et al [20] proposed a cascaded-cavity FFPI to simultaneously sense air pressure and temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [20] proposed a cascaded-cavity FFPI to simultaneously sense air pressure and temperature. Huang et al [21] presented a new sensing mechanism based on a strategically designed micro-cavity FMZI and FFPI for achieving simultaneous and cross-sensitivity free measuring of temperature and strain. The authors of [22] demonstrated that simultaneous measurement of mechanical and acoustic vibration can be realized, using a novel flexible FFPI.…”

Section: Introductionmentioning

confidence: 99%

“…In the above reviewed FI based sensing systems, the design of hardware systems and measuring mechanisms for achieving the desired sensing purposes can be summarized into three combinations: (1) the integration of broadband light source (BLS), optical spectral analyzer (OSA), circulators or power splitters and personal computer (PC) [20,21,30,31,33,35,36,37,40,41]; (2) the integration of an amplified spontaneous emission (ASE) or ASE with tunable optical filter (TOF), photodiode module (PM), data acquisition module (DAQM), circulators or optical couplers (OC) and PC [22,27,38]; (3) the integration of distributed feedback laser (DFBL) or DFBL with the erbium doped fiber amplifier (EDFA), PM or OSA, OC with wavelength-division multiplexer (WDM) module and PC with DAQM [24,25,26,28,29,32,34,39]. The common disadvantage of the existing systems and sensing methods mentioned above include high-cost, as well as being bulky and relatively slow in measuring speed if OSA is used.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Implementation of a Novel Measuring Scheme for Fiber Interferometer Based Sensors

Lee

You

2019

Sensors

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This paper presents a novel measuring scheme for fiber interferometer (FI) based sensors. With the advantages of being small sizes, having high sensitivity, a simple structure, good durability, being easy to integrate fiber optic communication and having immunity to electromagnetic interference (EMI), FI based sensing devices are suitable for monitoring remote system states or variations in physical parameters. However, the sensing mechanism for the interference spectrum shift of FI based sensors requires expensive equipment, such as a broadband light source (BLS) and an optical spectrum analyzer (OSA). This has strongly handicapped their wide application in practice. To solve this problem, we have, for the first time, proposed a smart measuring scheme, in which a commercial laser diode (LD) and a photodetector (PD) are used to detect the equivalent changes of optical power corresponding to the variation in measuring parameters, and a signal processing system is used to analyze the optical power changes and to determine the spectrum shifts. To demonstrate the proposed scheme, a sensing device on polymer microcavity fiber Fizeau interferometer (PMCFFI) is taken as an example for constructing a measuring system capable of long-distance monitoring of the temperature and relative humidity. In this paper, theoretical analysis and fundamental tests have been carried out. Typical results are presented to verify the feasibility and effectiveness of the proposed measuring scheme, smartly converting the interference spectrum shifts of an FI sensing device into the corresponding variations of voltage signals. With many attractive features, e.g., simplicity, low cost, and reliable remote-monitoring, the proposed scheme is very suitable for practical applications.

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In-Fiber Mach-Zehnder Interferometer Exploiting a Micro-Cavity For Strain and Temperature Simultaneous Measurement

Cited by 28 publications

References 31 publications

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Dual parameter in‐line fiber Mach‐Zehnder interferometer based on few‐mode fiber

Design and Implementation of a Novel Measuring Scheme for Fiber Interferometer Based Sensors

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