Bragg grating–based fiber laser vibration sensing system with novel phase detection

@article{Yang2014BraggGF,
  title={Bragg grating–based fiber laser vibration sensing system with novel phase detection},
  author={Xiufeng Yang and Zhihao D. Chen and Ju Teng Teo and Soon Huat Ng},
  journal={Optical Engineering},
  year={2014},
  volume={53}
}
Abstract. We characterized the dynamic response of a Bragg grating-based fiber laser sensing system. The sensing system comprises of a narrow line width fiber laser based on π-phase-shifted fiber Bragg grating formed in an active fiber, an unbalanced fiber Michelson interferometer (FMI), which performs wavelength-to-phase mapping, and a phase detection algorithm, which acquires the phase change from the interferometric output signal. The novel phase detection algorithm is developed based on the… CONTINUE READING