Optical characterization of strain sensing cables for Brillouin optical time domain analysis

IF 1.9 4区物理与天体物理 Q3 OPTICS

Journal of the European Optical Society-Rapid Publications Pub Date : 2022-07-29 DOI:10.1051/jeos/2022007

G. Bolognini, L. Rossi, F. Bastianini, F. Falcetelli, R. Di Sante, P. Bocheński

引用次数: 1

Abstract

Two innovative optical fiber cable layouts designed to improve strain measurement accuracy for Brillouin Optical Time Domain Analysis (BOTDA) sensors through improved strain transfer efficiency are presented and discussed. Swept Wavelength Interferometry (SWI) is used to experimentally evaluate their performance alongside analytical models and numerical simulation through Finite Element Method (FEM). The results show good agreement between the different methods and show that the second sensing cable design presents good features to minimize the mismatch between measured and actual strain. Finally, the strain response of both strain and temperature sensing cables of this design are evaluated, showing that their difference in response is reliable enough to allow temperature compensation.

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用于布里渊光时域分析的应变传感电缆光学特性

提出并讨论了两种创新的光纤电缆布局，旨在通过提高应变传递效率来提高布里渊光时域分析（BOTDA）传感器的应变测量精度。扫描波长干涉术（SWI）用于通过有限元法（FEM）对其性能进行实验评估，同时使用分析模型和数值模拟。结果表明，不同的方法之间有很好的一致性，并表明第二种传感电缆设计具有很好的特点，可以最大限度地减少测量应变和实际应变之间的不匹配。最后，对该设计的应变和温度传感电缆的应变响应进行了评估，表明它们的响应差异足够可靠，可以进行温度补偿。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the European Optical Society-Rapid Publications 物理-光学

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

5 weeks

期刊介绍： Rapid progress in optics and photonics has broadened its application enormously into many branches, including information and communication technology, security, sensing, bio- and medical sciences, healthcare and chemistry. Recent achievements in other sciences have allowed continual discovery of new natural mysteries and formulation of challenging goals for optics that require further development of modern concepts and running fundamental research. The Journal of the European Optical Society – Rapid Publications (JEOS:RP) aims to tackle all of the aforementioned points in the form of prompt, scientific, high-quality communications that report on the latest findings. It presents emerging technologies and outlining strategic goals in optics and photonics. The journal covers both fundamental and applied topics, including but not limited to: Classical and quantum optics Light/matter interaction Optical communication Micro- and nanooptics Nonlinear optical phenomena Optical materials Optical metrology Optical spectroscopy Colour research Nano and metamaterials Modern photonics technology Optical engineering, design and instrumentation Optical applications in bio-physics and medicine Interdisciplinary fields using photonics, such as in energy, climate change and cultural heritage The journal aims to provide readers with recent and important achievements in optics/photonics and, as its name suggests, it strives for the shortest possible publication time.