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Multi-wavelength Brillouin erbium-doped fiber laser sensor with high tunable temperature sensing coefficient

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Abstract

A multi-wavelength Brillouin erbium-doped fiber laser sensor is proposed and investigated experimentally. It is a linear laser cavity multi-wavelength fiber laser, formed by fixing two high-reflectivity Sangac loop mirrors at both ends. We investigate the laser system output characteristics and test the sensor performance for different temperature. Temperature/humidity and reliable linear-cavity fiber laser sensing operation were successfully achieved. Experimental results show that the temperature sensitivity is \(27.15\) MHz/ °C and the measurement error caused by frequency drift is about \(\pm 0. 2 8 5\) °C.

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Acknowledgements

This work was supported by Zhejiang Province Science and Technology Plan Projects (No. 2017C31067).

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Correspondence to Fan Bing.

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Xuefang, Z., Zengyang, L., Chaoqun, G. et al. Multi-wavelength Brillouin erbium-doped fiber laser sensor with high tunable temperature sensing coefficient. Opt Quant Electron 51, 14 (2019). https://doi.org/10.1007/s11082-018-1724-5

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  • DOI: https://doi.org/10.1007/s11082-018-1724-5

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