A silicon-tipped fiber-optic sensing platform with high resolution and fast response

Guigen Liu, Qiwen Sheng, Weilin Hou, Matthew L. Reinke, Ming Han

Research output: Contribution to journalArticle

Abstract

In this article, we introduce an innovative and practically promising fiber-optic sensing platform (FOSP) that we proposed and demonstrated recently. This FOSP relies on a silicon Fabry-Perot interferometer (FPI) attached to the fiber end, referred to as Si-FOSP in this work. The Si- FOSP generates an interferogram determined by the optical path length (OPL) of the silicon cavity. Measurand alters the OPL and thus shifts the interferogram. Due to the unique optical and thermal properties of the silicon material, this Si-FOSP exhibits an advantageous performance in terms of sensitivity and speed. Furthermore, the mature silicon fabrication industry endows the Si-FOSP with excellent reproducibility and low cost toward practical applications. Depending on the specific applications, either a low-finesse or high-finesse version will be utilized, and two different data demodulation methods will be adopted accordingly. Detailed protocols for fabricating both versions of the Si-FOSP will be provided. Three representative applications and their according results will be shown. The first one is a prototype underwater thermometer for profiling the ocean thermoclines, the second one is a flow meter to measure flow speed in the ocean, and the last one is a bolometer used for monitoring exhaust radiation from magnetically confined high-temperature plasma.

Original languageEnglish (US)
Article numbere59026
JournalJournal of Visualized Experiments
Volume2019
Issue number143
DOIs
StatePublished - Jan 1 2019

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Optical resolving power
Silicon
Fiber optics
Oceans and Seas
Radiation Monitoring
Thermometers
Hot Temperature
Fabry-Perot interferometers
Bolometers
Costs and Cost Analysis
Temperature
Demodulation
Temperature distribution
Thermodynamic properties
Optical properties
Plasmas
Radiation
Fabrication
Fibers
Monitoring

Keywords

  • Bolometry
  • Engineering
  • Fabry-perot interferometer
  • Fiber-optic sensing
  • Flow sensors
  • Issue 143
  • Silicon
  • Temperature measurement

ASJC Scopus subject areas

  • Neuroscience(all)
  • Chemical Engineering(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

Cite this

A silicon-tipped fiber-optic sensing platform with high resolution and fast response. / Liu, Guigen; Sheng, Qiwen; Hou, Weilin; Reinke, Matthew L.; Han, Ming.

In: Journal of Visualized Experiments, Vol. 2019, No. 143, e59026, 01.01.2019.

Research output: Contribution to journalArticle

Liu, Guigen ; Sheng, Qiwen ; Hou, Weilin ; Reinke, Matthew L. ; Han, Ming. / A silicon-tipped fiber-optic sensing platform with high resolution and fast response. In: Journal of Visualized Experiments. 2019 ; Vol. 2019, No. 143.
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