Highly sensitive multicore fiber accelerometer for low frequency vibration sensing

J Amorebieta, A Ortega-Gomez, G Durana… - Scientific Reports, 2020 - nature.com
We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency
and low amplitude vibration sensing. The sensing elements in the device are two short …

Interferometer based on strongly coupled multi-core optical fiber for accurate vibration sensing

J Villatoro, E Antonio-Lopez, J Zubia, A Schülzgen… - Optics express, 2017 - opg.optica.org
We report on the use of a simple interferometer built with strongly-coupled core optical fiber
for accurate vibration sensing. Our multi-core fiber (MCF) is designed to mode match a …

Multicore fiber sensors

J Villatoro, O Arrizabalaga… - 2017 Optical Fiber …, 2017 - ieeexplore.ieee.org
The use of multicore fibers (MCF) for sensing applications is discussed. In particular, we
report on precision interferometric sensors based on strongly-coupled core MCF fusion …

Highly sensitive fiber-optic accelerometer by grating inscription in specific core dip fiber

Q Rong, T Guo, W Bao, Z Shao, GD Peng, X Qiao - Scientific reports, 2017 - nature.com
A highly sensitive fiber-optic accelerometer based on detecting the power output of
resonances from the core dip is demonstrated. The sensing probe comprises a compact …

Diaphragms simulation, fabrication, and testing of a high temperature fiber optic FP accelerometer based on MEMS

M Mahissi, W Cai, X Zhang, X Tong, C Zhang, X Ma… - Optics …, 2023 - opg.optica.org
High-sensitivity detection of vibrations under high temperatures is a topic of great interest in
modern engineering such as thermal engine deep-sea aquaculture factory ship, aerospace …

Miniature multicore optical fiber vibration sensor

J Villatoro, E Antonio-Lopez, A Schülzgen… - Optics Letters, 2017 - opg.optica.org
We demonstrate a compact and versatile interferometric vibration sensor that operates in
reflection mode. To build the device, a short segment of symmetric strongly coupled …

Miniature tri-axis accelerometer based on fiber optic Fabry-Pérot interferometer

Z Qu, P Lu, W Zhang, W Xiong, D Liu, J Zhang - Optics Express, 2022 - opg.optica.org
A fiber optic accelerometer with a high sensitivity, low noise, and compact size is proposed
for low-frequency acceleration sensing. The sensor is composed of a 20 mm diameter …

Ultra-high-resolution phase demodulation based miniature fiber-optic accelerometer at low and medium frequencies

J Huang, Y Zhang, M Guo, G Zhang, X Zhao, C Li… - Optics & Laser …, 2024 - Elsevier
A miniature fiber-optic Fabry–Perot (FP) accelerometer based on phase demodulation is
demonstrated for improving sensitivity. The accelerometer is composed of a 11.5 mm …

Robust in-fiber spatial interferometer using multicore fiber for vibration detection

Z Zhao, Z Liu, M Tang, S Fu, L Wang, N Guo, C Jin… - Optics express, 2018 - opg.optica.org
We report the demonstration of a novel in-fiber spatially integrated Michelson interferometer
based on weakly coupled multicore fiber (MCF) for vibration sensing. The compact …

Pendulum-type hetero-core fiber optic accelerometer for low-frequency vibration monitoring

H Yamazaki, I Kurose, M Nishiyama, K Watanabe - Sensors, 2018 - mdpi.com
In this paper, a novel pendulum-type accelerometer based on hetero-core fiber optics has
been proposed for structural health monitoring targeting large-scale civil infrastructures …