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Proceedings Paper

Dynamical strain sensing via discrete reflectors interrogated by optical frequency domain reflectometry
Author(s): Oren Y. Sagiv; Dror Arbel; Yinon Katz; Yossi Grotas; Avishay Eyal
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Paper Abstract

Dynamical sensing of strain via discrete reflectors interrogated by optical frequency domain reflectometry is described and demonstrated experimentally. The benefits of using discrete reflectors rather than Rayleigh back-scattering for dynamical measurements are elaborated. The method is tested in a sensor arm made from four discrete fiber segments of different lengths and in a fiber with an array of ten fiber Bragg gratings with the same center wavelength and ~0.5% reflection. Dynamical sensing of oscillatory strain at 100 Hz, with absolute stretching amplitude <100nm, at ~1km is demonstrated.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84218L (7 November 2012); doi: 10.1117/12.975184
Show Author Affiliations
Oren Y. Sagiv, Tel Aviv Univ. (Israel)
Dror Arbel, Tel Aviv Univ. (Israel)
Yinon Katz, Tel Aviv Univ. (Israel)
Yossi Grotas, Tel Aviv Univ. (Israel)
Avishay Eyal, Tel Aviv Univ. (Israel)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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