ArticleSensors (Basel, Switzerland)2022
High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings.
Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- A Sensitivity-Enhanced Sub-Zero Temperature Sensor Based on the Mach-Zehnder Interferometer Coated with Organic Silicone Film.Micromachines · 2026Article
- Accurate Determination of the Temperature Sensitivity of UV-Induced Fiber Bragg Gratings.Sensors (Basel, Switzerland) · 2026Article
- Temperature Dependence of the Thermo-Optic Coefficient of GeOSensors (Basel, Switzerland) · 2024Article
- Temperature Dependence of the Thermo-Optic Coefficient of SiOSensors (Basel, Switzerland) · 2023Article
- Multifunctional Integration of Optical Fibers and Nanomaterials for Aircraft Systems.Materials (Basel, Switzerland) · 2023Review
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3 authors.
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Abstract
In this paper, we investigated the evolution of the dispersion curves of long-period fiber gratings (LPFGs) from room temperature down to 0 K. We considered gratings arc-induced in the SMF28 fiber and in two B/Ge co-doped fibers. Computer simulations were performed based on previously published experimental data. We found that the dispersion curves belonging to the lowest-order cladding modes are the most affected by the temperature changes, but those changes are minute when considering cladding modes with dispersion turning points (DTP) in the telecommunication windows. The temperature sensitivity is higher for gratings inscribed in the B/Ge co-doped fibers near DTP and the optimum grating period can be chosen at room temperature. A temperature sensitivity as high as -850 pm/K can be obtained in the 100-200 K temperature range, while a value of -170 pm/K is reachable at 20 K.
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