Fiber-optic high-temperature sensor based on thin-core fiber modal interferometer

Jing Jing Zhu, Aping Zhang, Tian Hao Xia, Sailing He, Wei Xue

Research output: Journal article publicationJournal articleAcademic researchpeer-review

126 Citations (Scopus)


We present a new fiber-optic high-temperature sensor based on a thin-core fiber (TCF) modal interferometer. A thin-core fiber, whose core radius is about half of the radius of a standard single-mode fiber (SMF), is inserted between standard SMFs to form an extremely simple in-fiber modal interferometer. The wavelength of the transmission dip increases linearly with the temperature. Experimental demonstration shows that it can be used to sense temperature up to 850°C with a sensitivity of about 18.3 pm/°CC.
Original languageEnglish
Article number5482084
Pages (from-to)1415-1418
Number of pages4
JournalIEEE Sensors Journal
Issue number9
Publication statusPublished - 20 Jul 2010
Externally publishedYes


  • Fiber modal interferometer
  • fiber-optic sensor
  • high-temperature sensor

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


Dive into the research topics of 'Fiber-optic high-temperature sensor based on thin-core fiber modal interferometer'. Together they form a unique fingerprint.

Cite this