Rayleigh Backscattering Analysis in POFs for High Spatial Resolution Distributed Sensing

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-10-14 DOI:10.1109/LPT.2024.3480790

Arnaldo Leal-Junior;Mariana Silveira;Carlos Marques

引用次数: 0

Abstract

This letter presents the Rayleigh backscattering analysis in perfluorinated polymer optical fibers (POFs). In this case, the optical backscattering reflectometry is used on the analysis of the scattering optical signals in the time and frequency domains considering both s- and p-polarizations. The results show the two-way optical attenuation of 17.46±9.50 dB/m along the fiber length, (of around 0.5 m). Considering the frequency domain analysis, a 4.3% variation on the two-way optical attenuation was obtained, whereas an 8.1% variation is obtained when the s- and p-polarization are analyzed. Then, the perfluorinated POF is applied as a millimeter-scale resolution force sensor, where the optical attenuation and spectral shift are analyzed as a function of the force applied along the POF. The sensor application results indicated the feasibility of using both attenuation and spectral shift on the measurement of force along the optical fiber cable. Therefore, the proposed approach is a suitable method for high resolution sensing.

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用于高空间分辨率分布式传感的 POF 中的瑞利反向散射分析

这封信介绍了全氟聚合物光纤（POF）中的瑞利反向散射分析。在这种情况下，考虑到 s 极化和 p 极化，利用光反向散射反射仪对散射光信号进行时域和频域分析。结果显示，沿光纤长度（约 0.5 米）的双向光衰减为 17.46±9.50 dB/m。考虑到频域分析，双向光衰减的变化率为 4.3%，而分析 s 极化和 p 极化时的变化率为 8.1%。然后，将全氟 POF 用作毫米级分辨率的力传感器，将光衰减和光谱偏移作为沿 POF 施加的力的函数进行分析。传感器的应用结果表明，利用衰减和光谱偏移测量光纤电缆上的力是可行的。因此，所提出的方法是一种适用于高分辨率传感的方法。

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

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.