A Compact Fiber-Tip Micro-Cavity Sensor for High-Pressure Measurement

Jun Ma, Jian Ju, Long Jin, Wei Jin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

130 Citations (Scopus)


A novel fiber-tip micro-cavity pressure sensor was fabricated by use of a fusion splicer and a pressurizing gas chamber. The fabrication process is simple and efficient without the need for careful cleaving, chemical etching, and bonding. Micro-cavities with wall thickness of a few micrometers demonstrated a pressure sensitivity of ~315 pm/MPa. The sensors have compact size, good mechanic strength, and high temperature stability up to 600 °C, and may be potentially used for pressure sensing in a high-temperature environment.
Original languageEnglish
Pages (from-to)1561-1563
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number21
Publication statusPublished - 1 Jan 2011


  • Fiber tip
  • high-pressure sensing
  • interferometric sensor
  • micro-cavity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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