Orientation-dependent optic-fiber accelerometer based on excessively tilted fiber grating

Lang Xie, Binbin Luo*, Mingfu Zhao, Ou Deng, Enhua Liu, Peng Liu, Yajie Wang, Lin Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

An orientation-dependent optic-fiber accelerometer based on the excessively tilted fiber grating (ExTFG) inscribed in SM28 fiber is demonstrated, which is based on the optical power demodulation scheme. Without any complicated processing, the cladding mode resonances of the bare ExTFG show high sensitivity to slight perturbation of bending. Due to its excellent azimuth-related bending properties, such a bare ExTFG fixed on a simple cantilever beam has exhibited strong orientation-dependent vibration properties. The experimental results show that a TE mode of the sensor can provide a maximum acceleration sensitivity of 74.14 mV/g at 72 Hz and maximum orientation sensitivity of 9.1 mV/deg while, for a TM mode, a maximum acceleration sensitivity of 57.85 mV/g at 72 Hz and maximum orientation sensitivity of 7.4 mV/deg could be achieved. These unique properties enable the sensor to act as a vector accelerometer for applications in many vibration measurementfields.

Original languageEnglish
Pages (from-to)125-128
Number of pages4
JournalOptics Letters
Volume45
Issue number1
Early online date18 Nov 2019
DOIs
Publication statusPublished - 1 Jan 2020

Fingerprint

accelerometers
fiber optics
gratings
fibers
sensitivity
vibration
cantilever beams
sensors
demodulation
azimuth
perturbation

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: https://doi.org/10.1364/OL.45.000125. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Cite this

Xie, Lang ; Luo, Binbin ; Zhao, Mingfu ; Deng, Ou ; Liu, Enhua ; Liu, Peng ; Wang, Yajie ; Zhang, Lin. / Orientation-dependent optic-fiber accelerometer based on excessively tilted fiber grating. In: Optics Letters. 2020 ; Vol. 45, No. 1. pp. 125-128.
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Orientation-dependent optic-fiber accelerometer based on excessively tilted fiber grating. / Xie, Lang; Luo, Binbin; Zhao, Mingfu; Deng, Ou; Liu, Enhua; Liu, Peng; Wang, Yajie; Zhang, Lin.

In: Optics Letters, Vol. 45, No. 1, 01.01.2020, p. 125-128.

Research output: Contribution to journalArticle

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