In-fiber twist sensor based on a fiber Bragg grating with 81° tilted structure

Chen, X.; Zhou, K.; Zhang, L. and Bennion, I. (2006). In-fiber twist sensor based on a fiber Bragg grating with 81° tilted structure. IEEE Photonics Technology Letters, 18 (24), pp. 2596-2598.

Abstract

We report a strong polarization dependent coupling behavior of fiber Bragg gratings with excessively tilted structures up to 81°. This unique property has been utilized to implement a novel twist sensor, showing high torsion sensitivity. The twist induced light coupling interchange between the two birefringence modes makes it possible to interrogate such a sensor using low-cost intensity demodulation technique. © 2006 IEEE.

Publication DOI: https://doi.org/10.1109/LPT.2006.887371
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
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Uncontrolled Keywords: fiber grating,optical sensor,polarization mode split,twist sensor,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Physics and Astronomy (miscellaneous)
Published Date: 2006-12-15

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