Numerical modeling of a novel athermal fiber optic cable
Authors
Schenato, Luca; Vidal Moreno, Pedro Jose; Santagiustina, Marco; Galtarossa, Andrea; Palmieri, Luca; [et al.]Publisher
SPIE
Date
2023-05-23Embargo end date
2024-05-23Affiliation
Universidad de Alcalá. Departamento de Electrónica; Universidad de Alcalá. Departamento de Teoría de la Señal y ComunicacionesBibliographic citation
Luca Schenato, Pedro J. Vidal-Moreno, Marco Santagiustina, Andrea Galtarossa, Luca Palmieri, Efren Diez-Jimenez, Sonia Martin-Lopez, and Miguel Gonzalez-Herraez "Numerical modeling of a novel athermal fiber optic cable", Proc. SPIE 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023), 1264339.
Keywords
Temperature
Phase shift
DAS
Rayleigh
Athermal cable
Description / Notes
European Workshop of Optical Fiber Sensors, Universidad de Mons, 23/05/2023-26/05/2023, Mons, Bélgica.
Document type
info:eu-repo/semantics/conferenceObject
Version
info:eu-repo/semantics/acceptedVersion
Publisher's version
https://doi.org/10.1117/12.2679988Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© 2023 SPIE
Access rights
info:eu-repo/semantics/embargoedAccess
Abstract
This paper introduces and numerically investigates a special optical fiber cable with zero temperature-induced phase shift. The cable structure consists of stacked layers of two materials with opportune mechanical, thermal, and geometrical properties. This structure allows adjusting the thermal-induced strain to the fiber, resulting in a broad tunability of the bare thermal expansion, including the negative range. By a proper choice of materials, the thickness of each layer, and the radius of the cable, the induced thermal strain can fully compensate for the thermo-optic effect, resulting in a complete temperature insensitivity of the phase shift. This cable may be of great interest in the sensing fields in all those applications where the temperature compensation is critical, such as in low-frequency distributed acoustic sensing. Moreover, it could be relevant for a wide range of telecom applications that require precise thermal control.
Files in this item
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Numerical_Schenato_EWOFS_2023.pdf | 510.9Kb |
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Numerical_Schenato_EWOFS_2023.pdf | 510.9Kb |
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