A High-Sensitivity Temperature Sensor Based on a Liquid Cladding Tapered Microfiber

Wang, Shuangshuang; Miao, Yinping; Fei, Chengwei; Zhang, Hongmin; Li, Bin

doi:10.1109/jsen.2020.3037722

Cited by 13 publications

(4 citation statements)

References 26 publications

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“…[ 14 ] For a microfiber with waist diameter d between 1.81 and 3.30 µm, only HE 11 and HE 12 modes could be excited due to cut off for HE 1( m >2) mode at 1533 nm (Note S1, Supporting Information), and thus the tapered microfiber is considered as a TMMF. In the experiment, we fabricated a TMMF that supports HE 11 and HE 12 modes at 1533 or 1654 nm via arc discharge and flame‐brush techniques, [ 15 ] and the lengths of taper transitions from 125 to 3.3 µm and from 3.3 to 2.1 µm are, respectively, 1–2 mm and ∼28 mm, giving a waist length of ∼5.6 cm. By using the zero‐dispersion wavelength for diameter determination, [ 14 ] the equivalent microfiber waist diameter is estimated to be ∼2.36 µm.…”

Section: Basic Principle Of Evanescent‐wave Mpd‐ptsmentioning

confidence: 99%

Evanescent Wave Lab‐on‐Fiber for High Sensitivity Gas Spectroscopy with Wide Dynamic Range and Long‐Term Stability

Zhao

Fan

et al. 2023

Laser & Photonics Reviews

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Micro/nano waveguide has been widely exploited for gas sensing due to its strong confinement of evanescent field, compact size, and fast response. However, the state-or-the-art evanescent-wave gas sensors still struggle to satisfy the requirements of high sensitivity, high selectivity, large dynamic range, and long-term stability. In this work, microfiber-based evanescent-wave mode-phase-difference photothermal spectroscopy for trace gas detection is reported. With a microfiber of 5.6 cm in length and 2.36 µm in diameter, noise-equivalent-concentration of 160 ppb methane in nitrogen is achieved with a dynamic range over 6 orders of magnitude, response time of less than 6 s, and <3% instability over 7 days. The technique utilizes commercial fiber-optic components to make cost-effective lab-on-fiber probes with real-time and remote detection capability for industrial, medical, and environmental monitoring.

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Section: Basic Principle Of Evanescent‐wave Mpd‐ptsmentioning

confidence: 99%

Evanescent Wave Lab‐on‐Fiber for High Sensitivity Gas Spectroscopy with Wide Dynamic Range and Long‐Term Stability

Zhao

Fan

et al. 2023

Laser & Photonics Reviews

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“…Xia et al encapsulated an MMZI sensor working at a dispersion turning point by PDMS ( Figure 7 d) with temperature sensitivity of about 38 nm/°C [ 62 ]. Wang et al encapsulated part of the microfiber in the capillary and filled it with deionized water ( Figure 7 e) [ 133 ]. After encapsulation, the temperature sensitivity of the microfiber sensor is −415 pm/°C, which is six times higher than that of the un-encapsulated microfiber sensor.…”

Section: Practical Application Of Optical Fiber Sensors In Ocean Obse...mentioning

confidence: 99%

“…( c ) Encapsulation method of FPI sensors [ 131 ]. ( d , e ) Encapsulation method of MMZI sensors [ 62 , 133 ].…”

Section: Practical Application Of Optical Fiber Sensors In Ocean Obse...mentioning

confidence: 99%

Review of Optical Fiber Sensors for Temperature, Salinity, and Pressure Sensing and Measurement in Seawater

Liang

Wang

Zhang

et al. 2022

Sensors

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Temperature, salinity, and pressure (TSP) are essential parameters for the ocean. Optical fiber sensors (OFSs) have rapidly come into focus as an ocean detection technology in recent years due to their advantages of electromagnetic interference, light weight, low cost, and no waterproof requirement. In this paper, the most recently developed TSP sensors for single parameter and multi-parameter TSP sensing and measurement based on different OFSs are reviewed. In addition, from the practical point of view, encapsulation methods that protect fibers and maintain the normal operation of OFSs in seawater, and the response time of the OFS, are addressed. Finally, we discuss the prospects and challenges of OFSs used in marine environments and provide some clues for future work.

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“…Mao et al filled the quartz capillary with a thermally sensitive liquid to form a highly sensitive temperature sensor [21]. Wang et al realized highsensitivity temperature measurement by wrapping the surface of a tapered micro optical fiber with thermal sensitive liquid [22]. In addition, in [23][24][25][26], people filled different MZI structures with silicone oil to achieve high-sensitivity temperature measurement.…”

Section: Introductionmentioning

confidence: 99%

High-sensitivity temperature sensor based on Mach–Zehnder interferometer filled with dimethyl silicone oil

Zhu

Jiang²,

Guo³

et al. 2022

Meas. Sci. Technol.

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In this paper, we designed a high sensitivity temperature sensor based on Mach-Zehnder interferometer (MZI) and verified experimentally. MZI is a splicing structure of "SMF ̶ MMF ̶ quartz capillary ̶ MMF ̶ SMF". A micro-channel was processed by femtosecond laser pulse on the capillary wall of MZI, and then dimethyl silicone oil (DSO) was injected into the capillary by immersion method. When filled with DSO, the micro-channel is sealed with epoxy glue to form MZI temperature sensor. When the ambient temperatures vary, because the thermo-optic effect of DSO in the capillary of MZI is high, and causing the optical path difference (OPD) in MZI changes, making the wavelength shifts of the transmission spectrum of MZI. Therefore, the high sensitivity of temperature is obtained by demodulating the wavelength shift of the transmission spectrum of MZI. The experimental results show that the temperature sensitivity of MZI filled with DSO is 7.4212 nm/°C in the range of 30 °C ~ 50 °C, which is ~309 times as high as that MZI without DSO (0.024 nm/°C). In addition, the sensor also has the advantages of good repeatability and stability, simple fabrication, good robustness and low cost.

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A High-Sensitivity Temperature Sensor Based on a Liquid Cladding Tapered Microfiber

Cited by 13 publications

References 26 publications

Evanescent Wave Lab‐on‐Fiber for High Sensitivity Gas Spectroscopy with Wide Dynamic Range and Long‐Term Stability

Evanescent Wave Lab‐on‐Fiber for High Sensitivity Gas Spectroscopy with Wide Dynamic Range and Long‐Term Stability

Review of Optical Fiber Sensors for Temperature, Salinity, and Pressure Sensing and Measurement in Seawater

High-sensitivity temperature sensor based on Mach–Zehnder interferometer filled with dimethyl silicone oil

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