Simultaneous Strain and Temperature Measurement Using Compact Core-Offset Inter-Modal Interferometer With Embedded Fiber Bragg Grating

Qi, Tao; Xiao, Shilin; Shi, Jie; Zhou, Zhao; Bi, Meihua; Li, Pingqing

doi:10.1364/acpc.2012.ath2a.3

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…Table 1 reveals that proposed sensor exhibits higher sensitivity than Refs. [1,2,5,18,19] and Refs. [3,6,12,18,19,20] in terms of strain and temperature, respectively, and almost the same characteristics with Ref.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Concatenated Up and Down Tapered Fiber for Simultaneous Measurement of Strain and Temperature

Bilsel

Navruz

2020

Commun.Fac.Sci.Univ.Ank.Series A2-A3: Phys.Sci. and Eng.

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A novel fiber optical sensor based on in-line fiber Mach-Zehnder interferometer for simultaneous measurement of strain and temperature is proposed and demonstrated experimentally. The interferometer is simple, extremely robust and highly sensitive and consists of two concatenated parts; one is a down-tapered fiber (DTF) and the other is an up-tapered fiber (UTF). UTF and DTF sections of the sensor are fabricated by using a commercial fiber splicer and a non-commercial setup based on heating and stretching a portion of a standard single-mode fiber, respectively. While UTF section behaves as a beam splitter to decompose the injected light into core and cladding modes, DTF section provides evanescent field to access the surrounding environment. Experimental results indicate that the resolutions of 0.83 °C and 45.80 micro-epsilon were achieved in temperature and strain, respectively, for simultaneous measurement with a 10 pm of wavelength resolution.

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Section: Resultsmentioning

confidence: 99%

“…[1,2,5,18,19] and Refs. [3,6,12,18,19,20] in terms of strain and temperature, respectively, and almost the same characteristics with Ref. [10].…”

Section: Resultsmentioning

confidence: 99%

A Concatenated Up and Down Tapered Fiber for Simultaneous Measurement of Strain and Temperature

Bilsel

Navruz

2020

Commun.Fac.Sci.Univ.Ank.Series A2-A3: Phys.Sci. and Eng.

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show abstract

“…In this field, the MZ interference microdisplacement sensor has been widely studied. In 2012, Qi et al 10 made two core-offset splices at both ends of a fiber Bragg grating (FBG) to realize simultaneous measurement of the temperature and strain. Its microdisplacement sensitivity is −0.835 nm∕μm.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous measurement of temperature and microdisplacement based on a Mach–Zehnder interferometer cascaded with a fiber Bragg grating

et al. 2015

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An all-fiber sensor for simultaneous measurement of temperature and microdisplacement is presented and demonstrated. The sensor head is fabricated by a peanut structure Mach-Zehnder interferometer (MZI) cascaded with a fiber Bragg grating (FBG). Experimental results show that the temperature sensitivities of the MZI (dip1) and the FBG (dip FBG ) are 0.0909 and 0.0121 nm∕°C, respectively. The microdisplacement sensitivities are −0.0233 and 0.0122 nm∕μm, respectively. The simultaneous measurement of the temperature and microdisplacement is demonstrated based on the sensitive matrix. With the advantages of low cost and easy fabrication, this sensor has potential applications in security, construction, and energy.

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Simultaneous Strain and Temperature Measurement Using Compact Core-Offset Inter-Modal Interferometer With Embedded Fiber Bragg Grating

Cited by 2 publications

References 8 publications

A Concatenated Up and Down Tapered Fiber for Simultaneous Measurement of Strain and Temperature

A Concatenated Up and Down Tapered Fiber for Simultaneous Measurement of Strain and Temperature

Simultaneous measurement of temperature and microdisplacement based on a Mach–Zehnder interferometer cascaded with a fiber Bragg grating

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