Research on vector bending sensors based on taper-drawn seven-core fiber Bragg grating

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-09-13 DOI:10.1016/j.yofte.2024.103975

Yulun Zhang , Yicun Yao , Liqiang Zhang , Fan Zhang , Zhaogang Nie , Minghong Wang

{"title":"Research on vector bending sensors based on taper-drawn seven-core fiber Bragg grating","authors":"Yulun Zhang , Yicun Yao , Liqiang Zhang , Fan Zhang , Zhaogang Nie , Minghong Wang","doi":"10.1016/j.yofte.2024.103975","DOIUrl":null,"url":null,"abstract":"<div><p>We present a novel vector bending sensor that enables simultaneous measurement of the bending response in six outer cores of a seven-core fiber (SCF) without the need for fan-in/fan-out configurations. Utilizing femtosecond laser technology, we inscribe seven Fiber Bragg Gratings (FBGs) with distinct wavelengths across the SCF cores. The sensor’s tapering process, tailored for the bending sensing scenario, effectively combines the reflection peaks of the FBGs into one detection channel, thereby substantially improving the measurement efficiency. Our experimental results demonstrate a strong directional dependence of the bending response, with a maximum sensitivity of 127 pm/m<sup>−1</sup>. The bending angle and curvature magnitude are reconstructed by analyzing the wavelength shifts of any two non-diagonal outer cores, offering a versatile solution for real-time monitoring applications. This sensor design, by eliminating the need for additional fan-in/fan-out devices, simplifies the system architecture and reduces both measurement time and sensor size, making it highly suitable for applications in precision manufacturing, environmental monitoring, and robotics.</p></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"88 ","pages":"Article 103975"},"PeriodicalIF":2.6000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Fiber Technology","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1068520024003201","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

We present a novel vector bending sensor that enables simultaneous measurement of the bending response in six outer cores of a seven-core fiber (SCF) without the need for fan-in/fan-out configurations. Utilizing femtosecond laser technology, we inscribe seven Fiber Bragg Gratings (FBGs) with distinct wavelengths across the SCF cores. The sensor’s tapering process, tailored for the bending sensing scenario, effectively combines the reflection peaks of the FBGs into one detection channel, thereby substantially improving the measurement efficiency. Our experimental results demonstrate a strong directional dependence of the bending response, with a maximum sensitivity of 127 pm/m⁻¹. The bending angle and curvature magnitude are reconstructed by analyzing the wavelength shifts of any two non-diagonal outer cores, offering a versatile solution for real-time monitoring applications. This sensor design, by eliminating the need for additional fan-in/fan-out devices, simplifies the system architecture and reduces both measurement time and sensor size, making it highly suitable for applications in precision manufacturing, environmental monitoring, and robotics.

查看原文本刊更多论文

基于锥形拉伸七芯光纤布拉格光栅的矢量弯曲传感器研究

我们展示了一种新型矢量弯曲传感器，它能够同时测量七芯光纤（SCF）六个外芯的弯曲响应，而无需扇入/扇出配置。利用飞秒激光技术，我们在 SCF 纤芯上刻入了七个波长不同的布拉格光栅 (FBG)。传感器的锥形工艺专为弯曲传感方案量身定制，可有效地将 FBG 的反射峰合并到一个检测通道中，从而大幅提高测量效率。我们的实验结果表明，弯曲响应具有很强的方向依赖性，最大灵敏度为 127 pm/m-1。通过分析任意两个非对角线外芯的波长偏移，可以重建弯曲角度和曲率大小，为实时监测应用提供了一个多功能解决方案。这种传感器设计无需额外的扇进/扇出装置，简化了系统结构，缩短了测量时间，减小了传感器尺寸，因此非常适合精密制造、环境监测和机器人领域的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.