Fast-Response High-Temperature Microfiber Coupler Tip Thermometer

Ding, M. D.; Wang, Pengfei; Brambilla, Gilberto

doi:10.1109/lpt.2012.2200673

Cited by 29 publications

(22 citation statements)

References 15 publications

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“…Optical microfiber/nanowire-based photonic devices have been successfully used in a range of sensing applications, including refractive index [1], current [2], stain [3], humidity [4,5], chemical gas [5], and temperature [6][7][8][9][10]. Extended range temperature measurement is important in a number of applications, such as in oil exploration, high-power electrical systems, and tunnel fire alarms.…”

mentioning

confidence: 99%

Fiber-tip high-temperature sensor based on multimode interference

Wang

Ding

Lin³

et al. 2013

Opt. Lett.

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confidence: 99%

Fiber-tip high-temperature sensor based on multimode interference

Wang

Ding

Lin³

et al. 2013

Opt. Lett.

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“…The shorter response time in experiments than the theoretical value may arise from the underestimation of the HTC which is difficult to be accurately determined for our case. As a comparison, the response time of our sensor is much shorter than the experimental result of ~16 ms of a silica fiber coupler tip [9], in which the rising time is defined as the time needed when only 37% (≈1/e) of the overall signal change is reached.…”

Section: Experimental Demonstrationmentioning

confidence: 89%

“…As to the response time, the package of a FBG with a copper tube encapsulation can greatly reduce the response time of the sensor from several seconds to 48.6 ms in water [2]. A response time of 16 ms in air was also demonstrated for a microfiber coupler tip temperature sensor [9].…”

Section: Introductionmentioning

confidence: 99%

High-resolution and fast-response fiber-optic temperature sensor using silicon Fabry-Pérot cavity

2015

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We report a fiber-optic sensor based on a silicon Fabry-Pérot cavity, fabricated by attaching a silicon pillar on the tip of a single-mode fiber, for high-resolution and high-speed temperature measurement. The large thermo-optic coefficient and thermal expansion coefficient of the silicon material give rise to an experimental sensitivity of 84.6 pm/°C. The excellent transparency and large refractive index of silicon over the infrared wavelength range result in a visibility of 33 dB for the reflection spectrum. A novel average wavelength tracking method has been proposed and demonstrated for sensor demodulation with improved signal-to-noise ratio, which leads to a temperature resolution of 6 × 10⁻⁴ °C. Due to the high thermal diffusivity of silicon, a response time as short as 0.51 ms for a sensor with an 80-µm-diameter and 200-µm-long silicon pillar has been experimentally achieved, suggesting a maximum frequency of ~2 kHz can be reached, to address the needs for highly dynamic environmental variations such as those found in the ocean.

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“…To ensure that the fabricated temperature sensor has a relatively high sensitivity, different capillary materials and filling liquids were investigated for fabricating the temperature sensor. Through a comparison of the experimental results, the highest sensitivity of 5.3 nm/°C was achieved when a Teflon capillary and index matching liquid was deployed, which is several times greater than similar sensors previously published [16][17][18][19]. The repeatability and response time of the fabricated sensor have also been investigated.…”

Section: Introductionmentioning

confidence: 87%

Highly sensitive temperature sensor using packaged optical microfiber coupler filled with liquids

Jiang

Fang

et al. 2018

Opt. Express

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A novel temperature sensor based on a Teflon capillary encapsulated 2 × 2 optical microfiber coupler (OMC) filled with refractive index matching liquids is described. The sealed capillary and the filling liquid are demonstrated to enhance the temperature sensing performance, achieving a high temperature sensitivity of 5.3 nm/°C. To the best of our knowledge, the temperature sensor described in this article exhibits the highest sensitivity among the OMC structure based fiber optic temperature sensors. Experimental results also show that it has good repeatability along with a fast response time of 243 ms. 21(11), 461-462 (1985). 21. R. X. Gao, Q. Wang, F. Zhao, B. Meng, and S. L. Qu, "Optimal design and fabrication of SMS fiber temperature sensor for liquid," Opt. Commun. 283(16), 3149-3152 (2010). 22. Y. Chen, Q. Han, T. Liu, and X. Lü, "Self-temperature-compensative refractometer based on singlemodemultimode-singlemode fiber structure," Sens. Actuators B Chem. 212, 107-111 (2015).

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Fast-Response High-Temperature Microfiber Coupler Tip Thermometer

Cited by 29 publications

References 15 publications

Fiber-tip high-temperature sensor based on multimode interference

Fiber-tip high-temperature sensor based on multimode interference

High-resolution and fast-response fiber-optic temperature sensor using silicon Fabry-Pérot cavity

Highly sensitive temperature sensor using packaged optical microfiber coupler filled with liquids

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