Fiber-optic temperature sensor with selectively enhanced Fabry-Perot interference using focusing effect of graded-index fiber for cryotherapy

Hideki Fukano, Kazuki Yoshioka

Research output: Contribution to journalArticle

Abstract

In this study, we developed a Fabry-Perot (FP) interference temperature sensor comprising a glass capillary and a graded-index (GI) fiber for cryotherapy. The sensor comprises a single-mode fiber attached to a glass capillary with a GI fiber. This structure can selectively enhance the specific FP interference and has a large extinction ratio. The sensor demonstrates excellent characteristics from 50 °C to-43 °C with a linear relationship between temperature and dip wavelength.

Original languageEnglish
Article numberSOOD05
JournalJapanese Journal of Applied Physics
Volume59
Issue numberSO
DOIs
Publication statusPublished - Aug 1 2020

ASJC Scopus subject areas

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

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