Abstract
We report on a fast and sensitive temperature sensor using a micro-structured or photonic crystal fiber interferometer with a high germanium doped fiber core. The wavelength sensitivity for temperature variation was as high as Δλ/ΔT= 78 pm/°C up to 500 °C, which was 6 times more sensitive than the fiber Bragg grating temperature sensitivity of Δλ/ΔT= 13 pm/°C at 1550 nm. The sensor device was investigated concerning the sensitivity characteristics and response time.
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Favero, F.C., Becker, M., Spittel, R. et al. Micro-structured fiber interferometer as sensitive temperature sensor. Photonic Sens 3, 208–213 (2013). https://doi.org/10.1007/s13320-013-0116-5
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DOI: https://doi.org/10.1007/s13320-013-0116-5