Highly-sensitive distributed birefringence measurements based on a two-pulse interrogation of a dynamic Brillouin grating

@article{Soto2017HighlysensitiveDB,
  title={Highly-sensitive distributed birefringence measurements based on a two-pulse interrogation of a dynamic Brillouin grating},
  author={Marcelo A. Soto and Andrey Denisov and Xabier Angulo-Vinuesa and Sonia Martin-Lopez and Luc Th{\'e}venaz and M. Gonz{\'a}lez-Herr{\'a}ez},
  journal={2017 25th Optical Fiber Sensors Conference (OFS)},
  year={2017},
  pages={1-4}
}
A method for distributed birefringence measurements is proposed based on the interference pattern generated by the interrogation of a dynamic Brillouin grating (DBG) using two short consecutive optical pulses. Compared to existing DBG interrogation techniques, the method here offers an improved sensitivity to birefringence changes thanks to the interferometric effect generated by the reflections of the two pulses. Experimental results demonstrate the possibility to obtain the longitudinal… CONTINUE READING

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