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

X. Chen; K. Zhou; L. Zhang; I. Bennion

doi:10.1109/LPT.2006.887371

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

X. Chen^*, K. Zhou, L. Zhang, I. Bennion

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	2596-2598
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2006.887371
Publication status	Published - 15 Dec 2006

Keywords

fiber grating
optical sensor
polarization mode split
twist sensor

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AB - 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.

KW - fiber grating

KW - optical sensor

KW - polarization mode split

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