Live Demonstration: Coupled-Core Fiber Bragg Grating Sensors

Alonso-Murias, M.; Maldonado-Hurtado, D.; Flores-Bravo, J. A.; Lindner, F.; Bierlich, J.; Wondraczek, K.; Sales, S.; Villatoro, J.

doi:10.1109/sensors56945.2023.10325036

2023 Ieee Sensors 2023

DOI: 10.1109/sensors56945.2023.10325036

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Live Demonstration: Coupled-Core Fiber Bragg Grating Sensors

M. Alonso-Murias,

D. Maldonado-Hurtado,

J. A. Flores-Bravo

et al.

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2024

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From Fiber Layout to the Sensor: Preparation Methods as Key Factors for High-Quality Coupled-Core-Fiber Sensors

Lindner,

Bierlich,

Alonso-Murias

et al. 2024

Sensors

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During recent years, the optical-fiber-based simultaneous sensing of strain and temperature has attracted increased interest for different applications, e.g., in medicine, architecture, and aerospace. Specialized fiber layouts further enlarge the field of applications at much lower costs and with easier handling. Today, the performance of many sensors fabricated from conventional fibers suffers from cross-sensitivity (temperature and strain) and relatively high interrogation costs. In contrast, customized fiber architectures would make it possible to circumvent such sensor drawbacks. Here, we report on the development of a high-quality coupled-core fiber and its performance for sensors—from the initial fiber layout via elaboration of the preform and fiber up to the sensor evaluation. A compact, high-speed, and cost-effective interrogation unit using such a specialized coupled-core fiber has been designed to monitor reflectivity changes while even being able to distinguish the direction of the force or impact. Several fiber core material techniques and approaches were investigated, which made it possible to obtain a sufficient volume of material for the required fiber core number and a specialized fiber core geometry in terms of core distances and radial refractive index profile, whilst handling the non-symmetrical fiber architectures of such modeled, complex structures and balancing resources and efforts.

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From Fiber Layout to the Sensor: Preparation Methods as Key Factors for High-Quality Coupled-Core-Fiber Sensors

Lindner,

Bierlich,

Alonso-Murias

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

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Live Demonstration: Coupled-Core Fiber Bragg Grating Sensors

Cited by 1 publication

References 2 publications

From Fiber Layout to the Sensor: Preparation Methods as Key Factors for High-Quality Coupled-Core-Fiber Sensors

From Fiber Layout to the Sensor: Preparation Methods as Key Factors for High-Quality Coupled-Core-Fiber Sensors

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