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Large Deformation In-Fiber Polymer Optical Fiber Sensor

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4 Author(s)
Kiesel, S. ; North Carolina State Univ., Raleigh ; Peters, K. ; Hassan, T. ; Kowalsky, M.

We demonstrate the measurement of the phase shift in a polymethylmethacrylate single-mode optical fiber interferometer, operating at a wavelength of 632.8 nm, up to 15.8% nominal strain in the fiber. The phase-displacement sensitivity is measured to be 1.39 x10 radldrm-1 for this strain range. This strain range is well beyond the yield strain of the polymer fiber and that previously measured for polymer Bragg gratings and silica optical fiber sensors.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 6 )