Lorentzian demodulation algorithm for multimode polymer optical fiber Bragg gratings

Yosuke Mizuno, Tianyi Ma, Ryo Ishikawa, Heeyoung Lee, Antreas Theodosiou, Kyriacos Kalli, Kentaro Nakamura

研究成果: Article査読

5 被引用数 (Scopus)

抄録

For strain sensing applications, we develop a simple and accurate Lorentzian demodulation algorithm for fiber Bragg gratings (FBGs) inscribed in multimode optical fibers. As multimode FBG spectra generally exhibit multiple peaks, simply tracking some particular spectral peaks (i.†e., maximum detection) results in measurement failure when the strain is large. Here, using an FBG inscribed in a perfluorinated graded-index multimode polymer optical fiber, we experimentally evaluate the new method by comparing its performance with those of other demodulation algorithms, such as the maximum and centroid detection methods. Finally, using this method, we demonstrate the accurate measurement of strain of up to 1.0%.

本文言語English
論文番号028003
ジャーナルJapanese Journal of Applied Physics
58
2
DOI
出版ステータスPublished - 2019
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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