High temperature probe sensor with high sensitivity based on Michelson interferometer

Zhao, Na; Fu, Haiwei; Shao, Min; Yan, Xu; Li, Huidong; Liu, Qinpeng; Gao, Hong; Liu, Yinggang; Qiao, Xueguang

doi:10.1016/j.optcom.2014.12.012

Cited by 40 publications

(22 citation statements)

References 18 publications

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“…After the high‐profile single‐mode‐multimode‐single‐mode (SMS) structure, a number of configurations have been implemented as temperature sensor in recent years . To increase the sensitivity, some progress is made to the sensor structure by building high thermal expansion coefficient (TEC) skeleton, bending the fiber, and tubing the sensor with high TOC liquid .…”

Section: Introductionmentioning

confidence: 99%

Optical fiber temperature sensor based on modal interference in multimode fiber lengthened by a short segment of polydimethylsiloxane

Cai

Liu

et al. 2019

Micro & Optical Tech Letters

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A fiber optics structure for temperature measurement is presented and demonstrated. This structure is composed of segments of single mode fiber (SMF), no-core fiber (NCF), hollow core fiber (HCF), and cured polydimethylsiloxane (PDMS) which is inserted into the cavity of HCF. Owning to the high thermal expansion coefficient (TEC) and thermooptic coefficient (TOC) of PDMS, the optical path length and the effective refractive index (RI) all register much larger change, leading to the higher temperature sensitivity of the sensor. Simulation showed similar result with experiment. The temperature sensitivity of 580.6 pm/ C is achieved in the range of 28 C to 50 C. K E Y W O R D S modal interference, optical fiber, PDMS, sensor, temperature

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Section: Introductionmentioning

confidence: 99%

Optical fiber temperature sensor based on modal interference in multimode fiber lengthened by a short segment of polydimethylsiloxane

Cai

Liu

et al. 2019

Micro & Optical Tech Letters

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“…LPFG-based high-temperature sensors [2] have a large cross sensitivity to fiber bending or strain, and they are relatively long (usually several centimeters). Various schemes including fiber tapers [3], special fibers fusion splicing [4][5][6][7][8][9][10][11][12] and mismatched core diameter structures [11,[13][14][15] have been exploited to construct MZIs and MIs. However, MZIs work in transmission, which are not very compact, not suitable for working in narrow space and remote sensing.…”

Section: Introductionmentioning

confidence: 99%

Refractive-index-modified-dot Fabry-Perot fiber probe fabricated by femtosecond laser for high-temperature sensing

Chen¹,

Shu²

2018

Opt. Express

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An optical fiber Fabry-Perot probe sensor for high-temperature measurement is proposed and demonstrated, which is fabricated by inducing a refractive-index-modified-dot (RIMD) in the fiber core near the end of a standard single mode fiber (SMF) using a femtosecond laser. The RIMD and the SMF end faces form a Fabry-Perot interferometer (FPI) with a high-quality interference fringe visibility (>20dB). As a high-temperature sensor, such an FPI exhibits a sensitivity of 13.9pm/°C and 18.6pm/°C in the range of 100-500°Cand 500-1000°C,respectively. The fabrication process of this device is quite straightforward, simple, time saving, and the sensor features small size, ease of fabrication, low cost, assembly-free, good mechanical strength, and high linear sensitivity.

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“…A number of different strategies have been successfully applied in order to obtain feasible and reliable temperature sensing, e.g., by exploiting the temperature dependence of integrated systems and/or single elements based on fiber Bragg gratings (FBGs), long period gratings (LPGs), Fabry-Perot (FP) cavity lasers, Sagnac loops, interferometers, off-set spliced fibers, etc . [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. Intrinsic FP fiber-optic temperature sensors can be obtained by employing the variation with temperature of the reflectivity exhibited by a fiber splice.…”

Section: Introductionmentioning

confidence: 99%

“…The central wavelength shift of the sensor output spectrum allows the measurement of the temperature, which can be determined with a maximum sensitivity of 6.5 nm/°C in the range from 51 °C to 65 °C. A high temperature probe sensor based on a Michelson interferometer was demonstrated in [ 12 ], whereby a sensitivity of 0.140 nm/°C from 30 °C to 800 °C was achieved, and the linearity was 99.9%.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring

Scarcia

Palma

Falconi

et al. 2015

Sensors

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An accurate design of an innovative fiber optic temperature sensor is developed. The sensor is based on a cascade of three microstructured optical fibers (MOFs). In the first one a suitable cascade of long period gratings is designed into the core. A single mode intermediate and a rare-earth activated Fabry-Perot optical cavity are the other two sensor MOF sections. An exhaustive theoretic feasibility investigation is performed employing computer code. The complete set-up for temperature monitoring can be obtained by utilizing only a low cost pump diode laser at 980 nm wavelength and a commercial optical power detector. The simulated sensitivity S = 315.1 μW/°C and the operation range ΔT = 100 °C is good enough for actual applications.

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High temperature probe sensor with high sensitivity based on Michelson interferometer

Cited by 40 publications

References 18 publications

Optical fiber temperature sensor based on modal interference in multimode fiber lengthened by a short segment of polydimethylsiloxane

Optical fiber temperature sensor based on modal interference in multimode fiber lengthened by a short segment of polydimethylsiloxane

Refractive-index-modified-dot Fabry-Perot fiber probe fabricated by femtosecond laser for high-temperature sensing

Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring

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