Strain and temperature dependencies of multimodal interference spectra in hetero-core-fiber structures

Yosuke Mizuno, Sonoko Hagiwara, Heeyoung Lee, Neisei Hayashi, Michiko Nishiyama, Kazuhiro Wanatabe, Kentaro Nakamura

研究成果: Article

1 被引用数 (Scopus)

抄録

We investigate, for the first time, the temperature and strain dependencies of the spectral dips of the multimodal interference patterns in hetero-core-fiber structures at telecom wavelength. With increasing temperature and strain, the spectral dips shifted to shorter wavelengths with dependence coefficients of -3.5 nm C-1 and -0.62 pm/μϵ, respectively. Their absolute values were ∼60 times larger and ∼30 times smaller than the temperature and strain sensitivities of a standard single-mode-multimode-single-mode sensor, respectively. This result implies that the hetero-core-fiber structures can be potentially used to develop highly sensitive temperature sensors with reduced strain sensitivity.

本文言語English
論文番号058002
ジャーナルJapanese Journal of Applied Physics
59
5
DOI
出版ステータスPublished - 2020 5 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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