Kun Wang, Kazuya Kishizawa, Kohei Noda, Wolfgang Kurz, Xingchen Dong, Alexander W. Koch, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno
{"title":"Spectral power stabilization against temperature variations in multimode fiber Bragg gratings","authors":"Kun Wang, Kazuya Kishizawa, Kohei Noda, Wolfgang Kurz, Xingchen Dong, Alexander W. Koch, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno","doi":"10.35848/1882-0786/ad3e49","DOIUrl":null,"url":null,"abstract":"\n Fiber Bragg gratings (FBGs) have been extensively used for single-point and multi-point measurements, mostly inscribed in single-mode fibers (SMFs). However, it is feasible to inscribe FBGs in multimode fibers (MMFs), which resist bending and can perform discriminative sensing of multiple physical parameters. When using a simple experimental setup to measure the temperature dependence of the dip in the transmission spectrum, significant fluctuations in its spectral power can be observed. Therefore, this study shows that the temperature-dependent spectral power fluctuations in multimode FBGs can be mitigated using a reflectometric configuration with suppressed modal interference, leading to higher-reliability temperature sensing.","PeriodicalId":503885,"journal":{"name":"Applied Physics Express","volume":"109 S2","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Express","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.35848/1882-0786/ad3e49","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Fiber Bragg gratings (FBGs) have been extensively used for single-point and multi-point measurements, mostly inscribed in single-mode fibers (SMFs). However, it is feasible to inscribe FBGs in multimode fibers (MMFs), which resist bending and can perform discriminative sensing of multiple physical parameters. When using a simple experimental setup to measure the temperature dependence of the dip in the transmission spectrum, significant fluctuations in its spectral power can be observed. Therefore, this study shows that the temperature-dependent spectral power fluctuations in multimode FBGs can be mitigated using a reflectometric configuration with suppressed modal interference, leading to higher-reliability temperature sensing.
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