{"title":"High-resolution distributed temperature sensing along polymer optical fiber using Brillouin optical correlation-domain reflectometry","authors":"Seiga Ochi , Keita Kikuchi , Shuto Tsurugai , Heeyoung Lee , Yosuke Mizuno","doi":"10.1016/j.yofte.2025.104144","DOIUrl":null,"url":null,"abstract":"<div><div>We present a strategy to enhance spatial resolution in Brillouin optical correlation-domain reflectometry (BOCDR) using perfluorinated graded-index polymer optical fibers (POFs). By exploiting the relationship between modulation amplitude and sensing fiber length, we achieve a theoretical spatial resolution of approximately 4.8 cm, surpassing previous limitations. This is accomplished by increasing the modulation amplitude beyond the conventional limit through reduction of the fiber length relative to the measurement range. We validate our approach with preliminary experiments and demonstrate distributed temperature sensing with high spatial resolution, successfully detecting a cooled section as short as 7.0 cm.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104144"},"PeriodicalIF":2.6000,"publicationDate":"2025-01-27","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/S1068520025000197","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 strategy to enhance spatial resolution in Brillouin optical correlation-domain reflectometry (BOCDR) using perfluorinated graded-index polymer optical fibers (POFs). By exploiting the relationship between modulation amplitude and sensing fiber length, we achieve a theoretical spatial resolution of approximately 4.8 cm, surpassing previous limitations. This is accomplished by increasing the modulation amplitude beyond the conventional limit through reduction of the fiber length relative to the measurement range. We validate our approach with preliminary experiments and demonstrate distributed temperature sensing with high spatial resolution, successfully detecting a cooled section as short as 7.0 cm.
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.