A fiber-tip Fabry-Perot pressure sensor with graphene diaphragm

Jun Ma, Wei Jin, Hoi Lut Ho

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)


A miniature fiber-tip pressure sensor was built by using an extremely thin graphene film as the diaphragm. The graphene also acts as a light reflector which, in conjunction with reflection at the fiber end/air interface, forms a low fineness Fabry-Perot cavity. The graphene-based micro-cavity sensor demonstrated a pressure sensitivity of ∼34.8 nm/kPa with a diaphragm diameter of ∼ 25 μm, nearly two orders of magnitude higher than previously reported sensors with similar diaphragm diameters.
Original languageEnglish
Title of host publication22nd International Conference on Optical Fiber Sensors
Publication statusPublished - 1 Dec 2012
Event22nd International Conference on Optical Fiber Sensors - Beijing, China
Duration: 15 Oct 201219 Oct 2012


Conference22nd International Conference on Optical Fiber Sensors


  • Fabry-Perot interferometer
  • Fiber tip sensor
  • Graphene diaphragm
  • Optical fiber sensor
  • Pressure sensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this