Abstract
To date, we have developed a temperature sensor based on multimodal interference in a polymer optical fiber (POF) with an extremely high sensitivity. Here, we experimentally evaluate the influence of annealing (heat treatment) of the POF on the temperature sensitivity at room temperature. We show that the temperature sensitivity is enhanced with increasing annealing temperature, and that, by annealing the POF at 90 °C, we can achieve a temperature sensitivity of +2.17 nm/°C, which is 2.9 times larger than that without annealing (+0.75 nm/°C).
| Original language | English |
|---|---|
| Article number | 078002 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 56 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2017 Jul |
| Externally published | Yes |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Kawa, T., Numata, G., Lee, H., Hayashi, N., Mizuno, Y., & Nakamura, K. (2017). Temperature sensing based on multimodal interference in polymer optical fibers: Room-temperature sensitivity enhancement by annealing. Japanese Journal of Applied Physics, 56(7), [078002]. https://doi.org/10.7567/JJAP.56.078002