Abstract
A singlemode-multimode-singlemode (SMS) fiber structure for temperature measurement using an optical time domain reflectometer (OTDR)-based interrogation system is proposed. A temperature measurement range of 40 °C–195 °C with a resolution of 0.12 °C and a linearity of 0.992 could be achieved for the multimode fiber (MMF) graded index with a length of 60 mm. It was also demonstrated that two-point temperature measurement with two SMS fiber structures as temperature sensors could be made. The proposed temperature measurement system offered a high resolution and also benefited from a simple configuration with a capability of multi-point temperature measurement.
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Hatta, A.M., Indriawati, K., Bestariyan, T. et al. SMS fiber structure for temperature measurement using an OTDR. Photonic Sens 3, 262–266 (2013). https://doi.org/10.1007/s13320-013-0104-9
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DOI: https://doi.org/10.1007/s13320-013-0104-9