H.S. Bhatti , A.M. Aizzuddin , M. Hadeed , E. Vorathin , H. Mohamad , K.S. Lim
{"title":"Temperature and chirp compensated fibre Bragg grating geophone for improved seismic detection","authors":"H.S. Bhatti , A.M. Aizzuddin , M. Hadeed , E. Vorathin , H. Mohamad , K.S. Lim","doi":"10.1016/j.optcom.2025.131533","DOIUrl":null,"url":null,"abstract":"<div><div>This study presents the development and performance evaluation of a temperature and chirp compensated fibre Bragg grating (FBG) geophone for improved seismic detection. The proposed FBG geophone utilized a rubber diaphragm to enhance vibration sensitivity. A differential FBG technique with two-point bonding was employed to eliminate chirping effects and achieve temperature compensation. The fabricated FBG geophone demonstrated a vibration sensitivity of 68.77 pm/g across the range of 1–54 Hz. Moreover, the proposed design exhibited a low cross-axis sensitivity of 3.68% and insignificant temperature sensitivity of 0.25 pm/°C. These findings significantly enhance the overall performance of the proposed FBG geophone for seismic detection.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131533"},"PeriodicalIF":2.5000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030401825000616","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/17 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents the development and performance evaluation of a temperature and chirp compensated fibre Bragg grating (FBG) geophone for improved seismic detection. The proposed FBG geophone utilized a rubber diaphragm to enhance vibration sensitivity. A differential FBG technique with two-point bonding was employed to eliminate chirping effects and achieve temperature compensation. The fabricated FBG geophone demonstrated a vibration sensitivity of 68.77 pm/g across the range of 1–54 Hz. Moreover, the proposed design exhibited a low cross-axis sensitivity of 3.68% and insignificant temperature sensitivity of 0.25 pm/°C. These findings significantly enhance the overall performance of the proposed FBG geophone for seismic detection.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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