Numerical and experimental study of a multimode optical fiber sensor based on Fresnel reflection at the fiber tip for refractive index measurement

A Brientin, D Leduc, V Gaillard, M Girard… - Optics & laser technology, 2021 - Elsevier
This paper presents the numerical and experimental study of a multimode optical fiber
(MMF) sensor based on Fresnel reflection at the fiber tip. Considering different modal power …

[HTML][HTML] Optical fiber interferometer for temperature-independent refractive index measuring over a broad range

JA Flores-Bravo, MA Illarramendi, J Zubia… - Optics & laser …, 2021 - Elsevier
The present work relates to manufacturing of a simple interferometric optical fiber
refractometer that features broad refractive index measuring range without ambiguity. The …

Machine learning implementation for unambiguous refractive index measurement using a self-referenced fiber refractometer

R Martínez-Manuel, LM Valentín-Coronado… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
The implementation of a machine learning algorithm for measuring refractive index of liquid
samples using Fresnel reflection at the tip of a fiber is proposed in order to overcome the …

Dual-Cavity Fiber Fabry-Perot Interferometer Coated With SnO2 for Relative Humidity and Temperature Sensing

CE Domínguez-Flores, O Rodríguez-Quiroz… - IEEE Sensors …, 2020 - ieeexplore.ieee.org
An optical fiber tip interferometer for the measurement of relative humidity (RH) and
temperature is proposed. The optical fiber structure used, a dual-cavity optical fiber Fabry …

Simple signal processing method to enlarge the dynamic range of the Fresnel reflection-based fiber Fabry–Pérot refractive index sensors

CE Domínguez-Flores, O Rodríguez-Quiroz… - Journal of Lightwave …, 2021 - opg.optica.org
In this work, we propose a signal processing algorithm to enlarge the refractive index
dynamic range (RIDR) of the Fresnel reflection-based fiber Fabry–Perot (FR-FFP) sensors …

Dual-channel SPR sensor based on an MMF-DHSMF-NCF reflective structure

L Zhou, R Tong, S Wu, H Zheng - Sensors and Actuators A: Physical, 2024 - Elsevier
This manuscript introduces a novel dual-channel surface plasmon resonance (SPR) sensor,
employing a reflective configuration comprising fused multimode fiber (MMF), dual-hole …

Ultra-long range refractive index fiber sensor

CE Domínguez-Flores, AI Valdés-Hernández… - Frontiers in …, 2022 - frontiersin.org
The dynamic range of optical fiber refractive index sensors is mainly determined by the
refractive index (RI) of the sensor surface in contact with the sample under test. In case of the …

Decision Tree Regression Supervised Machine Learning Assisted Large Dynamic Range Refractive Index Detection Using MMI Coreless Multimode Fiber Sensor

MYM Noor, A Azizan, SM Saimon, AI Azmi… - IEEE Sensors …, 2024 - ieeexplore.ieee.org
A supervised machine learning (ML) algorithm is proposed for measuring refractive index
(RI) values both below and above the RI of the fiber material using a multimode interference …

An optical acoustic detection system based on Fabry Pérot etalon stability structure

L Wu, Y Zheng, C Xue, J Bai, J Chen - Micromachines, 2021 - mdpi.com
The optical acoustic detection system based on the Fabry Pérot Etalon (FPE) with high
quality–factor (High Q) and stability structure is described and tested. The FPE contains two …

Ambiguity-free, multi-parametric, and multi-point fiber refractometer based on the Hilbert transform

J Esquivel-Hernández, R Martínez-Manuel… - IEEE Sensors …, 2024 - ieeexplore.ieee.org
Hilbert transform (HT) is implemented to create an unambiguous, multiparametric, and
multipoint fiber refractometer in a simple and practical way. The ambiguity effect in the fiber …