Open cavity Fabry-Pérot interferometric refractometer based on C-shaped fiber

Chuang Wu, Zhengyong Liu, Aping Zhang, Bai Ou Guan, Hwa Yaw Tam

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

1 Citation (Scopus)

Abstract

We demonstrated an in-line open cavity Fabry-Pérot interferometer (FPI) for liquid refractive index sensing with linear response and high sensitivity. The FPI was fabricated by splicing a short piece of C-shaped fiber (tens of micrometers) between two standard single-mode fibers. The refractive index response of the FPI was characterized by ethanol-water mixtures in the range of 1.33 to 1.36, and a high sensitivity of 1294 nm/RIU at the wavelength of 1550 nm was achieved. The sensor was used to measure the thermo-optic coefficient of pure water, and the results agree well with the literature.
Original languageEnglish
Title of host publication23rd International Conference on Optical Fibre Sensors
PublisherSPIE
Volume9157
ISBN (Print)9781628411751
DOIs
Publication statusPublished - 1 Jan 2014
Event23rd International Conference on Optical Fibre Sensors - Santander, Spain
Duration: 2 Jun 20146 Jun 2014

Conference

Conference23rd International Conference on Optical Fibre Sensors
CountrySpain
CitySantander
Period2/06/146/06/14

Keywords

  • Fabry-Pérot interferometer
  • Fiber-optic sensor
  • Refractive index sensing

ASJC Scopus subject areas

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

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