Simulation study of microring resonator for seawater salinity sensing with weak temperature dependence

Li, Guoxiang; Wang, Jing; Yang, Hang; Su, Zhaotang; Wang, Shanshan

doi:10.1051/epjap/2014140218

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…With this convenient, micro ring and photonic crystal based structural were experimentally proposed and monitored for the application of salinity and temperature sensing for seawater as stated in Refs. . In addition, simultaneous measurements for dual sensing is used by fiber Bragg grating (FBG), surface plasmon resonance dip probe, microfiber directional coupler, ring resonator with polymide/hydrogel‐coated photonic crystal fiber (PCF), directional coupler based micro/nanofibers, high‐birefringence elliptic fiber, Fabry‐ Perot interferometer, Mach‐Zhender interferometer, and D‐Shaped PCF .…”

Section: Introductionmentioning

confidence: 99%

Tri‐core photonic crystal fiber based refractive index dual sensor for salinity and temperature detection

Amiri

Paul

Ahmed

et al. 2018

Micro & Optical Tech Letters

107

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This article discusses the tri‐core photonic crystal microstructure fiber for the process of simultaneous sensing for salinity and temperature of water substances. This kind of microstructure is preferred in many sensing application to scale the detection process in micrometer range. In this novel sensor, the sensitivity is calculated through coupling mechanism by tracking wavelength shift of various concentrations of salinity and temperature using finite element method. The sensible samples are in liquid and are infiltrated into the framed hollow cavity. Based on the coupling principle between silica substrate and the analyte material, the sense of the salt as well as temperature is obtained. Finally, it is noted that sensitivity of the salt level in water as 5404.9 nm/RIU for x polarization direction and 5674 nm/RIU for y polarization direction have been calculated with the temperature sensitivity of 4 nm/°C in the same water substances.

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Section: Introductionmentioning

confidence: 99%

Tri‐core photonic crystal fiber based refractive index dual sensor for salinity and temperature detection

Amiri

Paul

Ahmed

et al. 2018

Micro & Optical Tech Letters

107

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“…For the supporting rod (PMMA), αP ≈ 0.8×10 -4 / o C, σP ≈ -1.1×10 -4 / o C[31] and for the low refractive index epoxy used in this experiment, αL ≈ 1.7×10 -4 / o C, σL ≈ -1.1×10 -4 / o C[32]. Because of the mismatch between the thermal expansion coefficients of the microfibre, the supporting rod and the low refractive index epoxy, a coefficient γ in STEL was defined to represent the effective influence on the length of coil due to the thermal expansion effects of the low refractive index epoxy and the supporting rod[33].…”

mentioning

confidence: 99%

Investigation of Temperature Dependence of Microfiber Coil Resonators

Yin

Jiang

et al. 2018

J. Lightwave Technol.

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The temperature-sensitive performance of a microfibre coil resonator (MCR) is thoroughly investigated. The MCR is fabricated by wrapping a microfibre on a PMMA rod coated with a UV-curable low refractive index epoxy. The temperature sensitivity is measured by investigating the correlation between the shift of the resonant wavelength and the surrounding temperature. It is determined that a range of parameters of the MCRs, including the gap between two adjacent rings, the diameter of the supporting rod, the number of rings, and the diameter of the microfibre have a great influence on the temperature sensitivity of the MCRs. By optimizing the fabrication parameters of MCRs, such as the gap of the adjacent microrings and the diameter of supporting rod etc, the maximum temperature sensitivity obtained is 237.31 pm/ o C, which is about 2.3 times higher than that of MCR embedded in EFIRON UV-373 polymer and 23 times higher than that of MCR embedded in Teflon because of the strong thermo-optic and thermal expansion effects of the low refractive index epoxy and the supporting rod used in the experiments. Theoretical (numerical) simulation and experiment results are considered in the assessment of the optical performance improvement of MCR-based optical fibre temperature sensors.

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