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A Novel Fiber-Optic Tapered Long-Period Grating Sensor for Pressure Monitoring

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4 Author(s)
Bock, W.J. ; Quebec Univ., Gatineau ; Jiahua Chen ; Mikulic, P. ; Eftimov, T.

The method and the required installations for fabricating tapered long-period fiber gratings can be simpler than that of standard fiber Bragg gratings, and the fabrication process is faster. To our knowledge, the tapered long-period fiber grating pressure sensor is presented here for the first time. In this paper, the fabrication method for tapered long-period fiber gratings, the sensing principle, the sensor structure, the measurement setup, and the preliminary results are presented and discussed. The pressure sensitivity of the sensor is as high as 5.1 pm/bar.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:56 ,  Issue: 4 )