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

  • Zhou Xuefang
  • Li Zengyang
  • Ge Chaoqun
  • Fan BingEmail author
  • Wang Tianshu


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.


Temperature sensor Multi-wavelength Brillouin fiber laser Fiber-laser sensor High-order Stokes wavelength 



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


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Authors and Affiliations

  1. 1.School of Communication EngineeringHangzhou Dianzi UniversityHangzhouChina
  2. 2.National and Local Joint Engineering Research Center of Optoelectronics TechnologyChangchun University of Science and TechnologyChangchunChina

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